CVE-2025-11711

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global moz_debug_prefix /lib/debug %global moz_debug_dir /lib/debug/ %global uname_m %(uname -m) %global symbols_file_name -.en-US.-%(uname.crashreporter-symbols.zip %global symbols_file_path /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip %global _find_debuginfo_opts -p /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip -o debugcrashreporter.list %global crashreporter_pkg_name mozilla-crashreporter--debuginfo

Security Fix(es):

Use-after-free vulnerability in MediaTrackGraphImpl::GetInstance(). This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11708)

A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11709)

A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11710)

There was a way to change the value of JavaScript Object properties that were supposed to be non-writeable. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11711)

A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contributed to an XSS on a site that unsafely serves files without a content-type header. This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11712)

Memory safety bugs present in Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11714)

Memory safety bugs present in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird ESR < 140.4.(CVE-2025-11715)

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global moz_debug_prefix /lib/debug %global moz_debug_dir /lib/debug/ %global uname_m %(uname -m) %global symbols_file_name -.en-US.-%(uname.crashreporter-symbols.zip %global symbols_file_path /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip %global _find_debuginfo_opts -p /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip -o debugcrashreporter.list %global crashreporter_pkg_name mozilla-crashreporter--debuginfo

Security Fix(es):

Use-after-free vulnerability in MediaTrackGraphImpl::GetInstance(). This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11708)

A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11709)

A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11710)

There was a way to change the value of JavaScript Object properties that were supposed to be non-writeable. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11711)

A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contributed to an XSS on a site that unsafely serves files without a content-type header. This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11712)

Memory safety bugs present in Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11714)

Memory safety bugs present in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird ESR < 140.4.(CVE-2025-11715)

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global moz_debug_prefix /lib/debug %global moz_debug_dir /lib/debug/ %global uname_m %(uname -m) %global symbols_file_name -.en-US.-%(uname.crashreporter-symbols.zip %global symbols_file_path /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip %global _find_debuginfo_opts -p /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip -o debugcrashreporter.list %global crashreporter_pkg_name mozilla-crashreporter--debuginfo

Security Fix(es):

Use-after-free vulnerability in MediaTrackGraphImpl::GetInstance(). This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11708)

A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11709)

A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11710)

There was a way to change the value of JavaScript Object properties that were supposed to be non-writeable. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11711)

A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contributed to an XSS on a site that unsafely serves files without a content-type header. This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11712)

Memory safety bugs present in Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11714)

Memory safety bugs present in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird ESR < 140.4.(CVE-2025-11715)

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global moz_debug_prefix /lib/debug %global moz_debug_dir /lib/debug/ %global uname_m %(uname -m) %global symbols_file_name -.en-US.-%(uname.crashreporter-symbols.zip %global symbols_file_path /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip %global _find_debuginfo_opts -p /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip -o debugcrashreporter.list %global crashreporter_pkg_name mozilla-crashreporter--debuginfo

Security Fix(es):

Use-after-free vulnerability in MediaTrackGraphImpl::GetInstance(). This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11708)

A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11709)

A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11710)

There was a way to change the value of JavaScript Object properties that were supposed to be non-writeable. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11711)

A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contributed to an XSS on a site that unsafely serves files without a content-type header. This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11712)

Memory safety bugs present in Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11714)

Memory safety bugs present in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird ESR < 140.4.(CVE-2025-11715)

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

This vulnerability affects Firefox versions prior to 143 and Firefox ESR versions prior to 140.3. Specific vulnerability type and impact details require further confirmation.(CVE-2025-10527)

This vulnerability affects Firefox < 143 and Firefox ESR < 140.3.(CVE-2025-10528)

This vulnerability affects Firefox versions earlier than 143 and Firefox ESR versions earlier than 140.3. The vulnerability may lead to security bypass or other security issues.(CVE-2025-10529)

This vulnerability affects Firefox < 143 and Firefox ESR < 140.3.(CVE-2025-10532)

This vulnerability affects Firefox < 143, Firefox ESR < 115.28, and Firefox ESR < 140.3. Specific vulnerability details require further analysis.(CVE-2025-10533)

This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.(CVE-2025-10536)

Memory safety bugs present in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 143 and Firefox ESR < 140.3.(CVE-2025-10537)

Use-after-free vulnerability in MediaTrackGraphImpl::GetInstance(). This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11708)

A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11709)

A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11710)

There was a way to change the value of JavaScript Object properties that were supposed to be non-writeable. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11711)

A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contributed to an XSS on a site that unsafely serves files without a content-type header. This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11712)

Memory safety bugs present in Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11714)

Memory safety bugs present in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird ESR < 140.4.(CVE-2025-11715)

Modification of specific WebGL shader attributes could trigger an out-of-bounds read, which, when chained with other vulnerabilities, could be used to escalate privileges. This bug only affects Thunderbird for macOS. Other versions of Thunderbird are unaffected. This vulnerability affects Firefox < 138, Firefox ESR <…

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability.

Security Fix(es):

Use-after-free vulnerability in MediaTrackGraphImpl::GetInstance(). This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11708)

A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11709)

A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11710)

There was a way to change the value of JavaScript Object properties that were supposed to be non-writeable. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11711)

A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contributed to an XSS on a site that unsafely serves files without a content-type header. This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11712)

Memory safety bugs present in Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.(CVE-2025-11714)

Memory safety bugs present in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird ESR < 140.4.(CVE-2025-11715)

Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.(CVE-2025-9185)

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

• thunderbird: firefox: Memory safety bugs (CVE-2025-11714)

• thunderbird: firefox: Out of bounds read/write in a privileged process triggered by WebGL textures (CVE-2025-11709)

• thunderbird: firefox: Cross-process information leaked due to malicious IPC messages (CVE-2025-11710)

• thunderbird: firefox: Use-after-free in MediaTrackGraphImpl::GetInstance() (CVE-2025-11708)

• thunderbird: firefox: An OBJECT tag type attribute overrode browser behavior on web resources without a content-type (CVE-2025-11712)

• thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144 (CVE-2025-11715)

• thunderbird: firefox: Some non-writable Object properties could be modified (CVE-2025-11711)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

• thunderbird: firefox: Memory safety bugs (CVE-2025-11714)

• thunderbird: firefox: Out of bounds read/write in a privileged process triggered by WebGL textures (CVE-2025-11709)

• thunderbird: firefox: Cross-process information leaked due to malicious IPC messages (CVE-2025-11710)

• thunderbird: firefox: Use-after-free in MediaTrackGraphImpl::GetInstance() (CVE-2025-11708)

• thunderbird: firefox: An OBJECT tag type attribute overrode browser behavior on web resources without a content-type (CVE-2025-11712)

• thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144 (CVE-2025-11715)

• thunderbird: firefox: Some non-writable Object properties could be modified (CVE-2025-11711)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

• thunderbird: firefox: Memory safety bugs (CVE-2025-11714)

• thunderbird: firefox: Out of bounds read/write in a privileged process triggered by WebGL textures (CVE-2025-11709)

• thunderbird: firefox: Cross-process information leaked due to malicious IPC messages (CVE-2025-11710)

• thunderbird: firefox: Use-after-free in MediaTrackGraphImpl::GetInstance() (CVE-2025-11708)

• thunderbird: firefox: An OBJECT tag type attribute overrode browser behavior on web resources without a content-type (CVE-2025-11712)

• thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144 (CVE-2025-11715)

• thunderbird: firefox: Some non-writable Object properties could be modified (CVE-2025-11711)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

• thunderbird: firefox: Memory safety bugs (CVE-2025-11714)

• thunderbird: firefox: Out of bounds read/write in a privileged process triggered by WebGL textures (CVE-2025-11709)

• thunderbird: firefox: Cross-process information leaked due to malicious IPC messages (CVE-2025-11710)

• thunderbird: firefox: Use-after-free in MediaTrackGraphImpl::GetInstance() (CVE-2025-11708)

• thunderbird: firefox: An OBJECT tag type attribute overrode browser behavior on web resources without a content-type (CVE-2025-11712)

• thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144 (CVE-2025-11715)

• thunderbird: firefox: Some non-writable Object properties could be modified (CVE-2025-11711)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

• thunderbird: firefox: Memory safety bugs (CVE-2025-11714)

• thunderbird: firefox: Out of bounds read/write in a privileged process triggered by WebGL textures (CVE-2025-11709)

• thunderbird: firefox: Cross-process information leaked due to malicious IPC messages (CVE-2025-11710)

• thunderbird: firefox: Use-after-free in MediaTrackGraphImpl::GetInstance() (CVE-2025-11708)

• thunderbird: firefox: An OBJECT tag type attribute overrode browser behavior on web resources without a content-type (CVE-2025-11712)

• thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144 (CVE-2025-11715)

• thunderbird: firefox: Some non-writable Object properties could be modified (CVE-2025-11711)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

• thunderbird: firefox: Memory safety bugs (CVE-2025-11714)

• thunderbird: firefox: Out of bounds read/write in a privileged process triggered by WebGL textures (CVE-2025-11709)

• thunderbird: firefox: Cross-process information leaked due to malicious IPC messages (CVE-2025-11710)

• thunderbird: firefox: Use-after-free in MediaTrackGraphImpl::GetInstance() (CVE-2025-11708)

• thunderbird: firefox: An OBJECT tag type attribute overrode browser behavior on web resources without a content-type (CVE-2025-11712)

• thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144 (CVE-2025-11715)

• thunderbird: firefox: Some non-writable Object properties could be modified (CVE-2025-11711)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

There was a way to change the value of JavaScript Object properties that were supposed to be non-writeable. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

• thunderbird: firefox: Memory safety bugs (CVE-2025-11714)
• thunderbird: firefox: Out of bounds read/write in a privileged process triggered by WebGL textures (CVE-2025-11709)
• thunderbird: firefox: Cross-process information leaked due to malicious IPC messages (CVE-2025-11710)
• thunderbird: firefox: Use-after-free in MediaTrackGraphImpl::GetInstance() (CVE-2025-11708)
• thunderbird: firefox: An OBJECT tag type attribute overrode browser behavior on web resources without a content-type (CVE-2025-11712)
• thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144 (CVE-2025-11715)
• thunderbird: firefox: Some non-writable Object properties could be modified (CVE-2025-11711)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

• thunderbird: firefox: Memory safety bugs (CVE-2025-11714)
• thunderbird: firefox: Out of bounds read/write in a privileged process triggered by WebGL textures (CVE-2025-11709)
• thunderbird: firefox: Cross-process information leaked due to malicious IPC messages (CVE-2025-11710)
• thunderbird: firefox: Use-after-free in MediaTrackGraphImpl::GetInstance() (CVE-2025-11708)
• thunderbird: firefox: An OBJECT tag type attribute overrode browser behavior on web resources without a content-type (CVE-2025-11712)
• thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144 (CVE-2025-11715)
• thunderbird: firefox: Some non-writable Object properties could be modified (CVE-2025-11711)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

• thunderbird: firefox: Memory safety bugs (CVE-2025-11714)
• thunderbird: firefox: Out of bounds read/write in a privileged process triggered by WebGL textures (CVE-2025-11709)
• thunderbird: firefox: Cross-process information leaked due to malicious IPC messages (CVE-2025-11710)
• thunderbird: firefox: Use-after-free in MediaTrackGraphImpl::GetInstance() (CVE-2025-11708)
• thunderbird: firefox: An OBJECT tag type attribute overrode browser behavior on web resources without a content-type (CVE-2025-11712)
• thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144 (CVE-2025-11715)
• thunderbird: firefox: Some non-writable Object properties could be modified (CVE-2025-11711)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

• thunderbird: firefox: Memory safety bugs (CVE-2025-11714)
• thunderbird: firefox: Out of bounds read/write in a privileged process triggered by WebGL textures (CVE-2025-11709)
• thunderbird: firefox: Cross-process information leaked due to malicious IPC messages (CVE-2025-11710)
• thunderbird: firefox: Use-after-free in MediaTrackGraphImpl::GetInstance() (CVE-2025-11708)
• thunderbird: firefox: An OBJECT tag type attribute overrode browser behavior on web resources without a content-type (CVE-2025-11712)
• thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144 (CVE-2025-11715)
• thunderbird: firefox: Some non-writable Object properties could be modified (CVE-2025-11711)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

• thunderbird: firefox: Memory safety bugs (CVE-2025-11714)
• thunderbird: firefox: Out of bounds read/write in a privileged process triggered by WebGL textures (CVE-2025-11709)
• thunderbird: firefox: Cross-process information leaked due to malicious IPC messages (CVE-2025-11710)
• thunderbird: firefox: Use-after-free in MediaTrackGraphImpl::GetInstance() (CVE-2025-11708)
• thunderbird: firefox: An OBJECT tag type attribute overrode browser behavior on web resources without a content-type (CVE-2025-11712)
• thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144 (CVE-2025-11715)
• thunderbird: firefox: Some non-writable Object properties could be modified (CVE-2025-11711)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

• thunderbird: firefox: Memory safety bugs (CVE-2025-11714)
• thunderbird: firefox: Out of bounds read/write in a privileged process triggered by WebGL textures (CVE-2025-11709)
• thunderbird: firefox: Cross-process information leaked due to malicious IPC messages (CVE-2025-11710)
• thunderbird: firefox: Use-after-free in MediaTrackGraphImpl::GetInstance() (CVE-2025-11708)
• thunderbird: firefox: An OBJECT tag type attribute overrode browser behavior on web resources without a content-type (CVE-2025-11712)
• thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144 (CVE-2025-11715)
• thunderbird: firefox: Some non-writable Object properties could be modified (CVE-2025-11711)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

• rebase from Thunderbird 115.4.1 to 140.12.0 ESR

• CVE-2022-3032: When receiving an HTML email that contained an iframe element, which used a srcdoc attribute to define the inner HTML document, remote objects specified in the nested document, for example images or videos, were not blocked

• CVE-2023-0430: Certificate OCSP revocation status was not checked when verifying S/Mime signatures

• CVE-2023-0547: OCSP revocation status of recipient certificates was not checked when sending S/Mime encrypted email, and revoked certificates would be accepted

• CVE-2023-0616: If a MIME email combines OpenPGP and OpenPGP MIME data in a certain way Thunderbird repeatedly attempts to process and display the message, which could cause Thunderbird's user interface to lock up and no longer respond to the user's actions

• CVE-2023-1945: Unexpected data returned from the Safe Browsing API could have led to memory corruption and a potentially exploitable crash

• CVE-2023-4573: When receiving rendering data over IPC mStream could have been destroyed when initialized, which could have led to a use-after-free causing a potentially exploitable crash

• CVE-2023-4574: When creating a callback over IPC for showing the Color Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished

• CVE-2023-4575: When creating a callback over IPC for showing the File Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished

• CVE-2023-4577: When UpdateRegExpStatics attempted to access initialStringHeap it could already have been garbage collected prior to entering the function, which could potentially have led to an exploitable crash

• CVE-2023-4578: When calling JS::CheckRegExpSyntax a Syntax Error could have been set which would end in calling convertToRuntimeErrorAndClear. A path in the function could attempt to allocate memory when none is available which would have caused a newly created Out of Memory exception to be mishandled as a Syntax Error

• CVE-2023-4580: Push notifications stored on disk in private browsing mode were not being encrypted potentially allowing the leak of sensitive information

• CVE-2023-4581: Excel .xll add-in files did not have a blocklist entry in Firefox's executable blocklist which allowed them to be downloaded without any warning of their potential harm

• CVE-2023-5169: A compromised content process could have provided malicious data in a PathRecording resulting in an out-of-bounds write, leading to a potentially exploitable crash in a privileged process

• CVE-2023-5171: During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing an attacker to write two NUL bytes, and cause a potentially exploitable crash

• CVE-2023-5724: Drivers are not always robust to extremely large draw calls and in some cases this scenario could have led to a crash

• CVE-2023-5725: A malicious installed WebExtension could open arbitrary URLs, which under the right circumstance could be leveraged to collect sensitive user data

• CVE-2023-5732: An attacker could have created a malicious link using bidirectional characters to spoof the location in the address bar when visited

• CVE-2023-6204: On some systems—depending on the graphics settings and drivers—it was possible to force an out-of-bounds read and leak memory data into the images created on the canvas element

• CVE-2023-6205: It was possible to cause the use of a MessagePort after it had already been freed, which could potentially have led to an exploitable crash

• CVE-2023-6206: The black fade animation when exiting fullscreen is roughly the length of the anti-clickjacking delay on permission prompts

• CVE-2023-6207: Ownership…

CVE-2025-11708: Use-after-free in MediaTrackGraphImpl::GetInstance() CVE-2025-11709: Out of bounds read/write in a privileged process triggered by WebGL textures CVE-2025-11710: Cross-process information leaked due to malicious IPC messages CVE-2025-11711: Some non-writable Object properties could be modified CVE-2025-11712: An OBJECT tag type attribute overrode browser behavior on web resources without a content-type CVE-2025-11713: Potential user-assisted code execution in “Copy as cURL” command CVE-2025-11714: Memory safety bugs fixed in Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144 CVE-2025-11715: Memory safety bugs fixed in Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144, and other security fixes; please see the links.

CVE-2025-11708: Use-after-free in MediaTrackGraphImpl::GetInstance() CVE-2025-11709: Out of bounds read/write in a privileged process triggered by WebGL textures CVE-2025-11710: Cross-process information leaked due to malicious IPC messages CVE-2025-11711: Some non-writable Object properties could be modified CVE-2025-11712: An OBJECT tag type attribute overrode browser behavior on web resources without a content-type CVE-2025-11713: Potential user-assisted code execution in “Copy as cURL” command CVE-2025-11714: Memory safety bugs fixed in Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144 CVE-2025-11715: Memory safety bugs fixed in Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144, and other security fixes; please see the links.

These are all security issues fixed in the firefox-esr-140.4.0-1.1 package on the GA media of openSUSE Tumbleweed.