CVE-2006-2776
Certain privileged UI code in Mozilla Firefox and Thunderbird before 1.5.0.4 calls content...
7.5 HighFix available
CVE-2006-2776 is a high vulnerability (CVSS 7.5) in Mozilla Firefox, published June 2, 2006. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 6.24%, the 93rd percentile. Fixed in thunderbird 1.5.0.4-1.
Certain privileged UI code in Mozilla Firefox and Thunderbird before 1.5.0.4 calls content-defined setters on an object prototype, which allows remote attackers to execute code at a higher privilege than intended.
Exploit likelihood
6.24%Down 6.0 points since Feb 4, 2022
What each source reports
NVD Score used
Certain privileged UI code in Mozilla Firefox and Thunderbird before 1.5.0.4 calls content-defined setters on an object prototype, which allows remote attackers to execute code at a higher privilege than intended.
- Record
CVE-2006-2776- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
Certain privileged UI code in Mozilla Firefox and Thunderbird before 1.5.0.4 calls content-defined setters on an object prototype, which allows remote attackers to execute code at a higher privilege than intended.
- Record
CVE-2006-2776- Updated
- 2026-11-02
EUVDEUVD-2006-2773 No score
Certain privileged UI code in Mozilla Firefox and Thunderbird before 1.5.0.4 calls content-defined setters on an object prototype, which allows remote attackers to execute code at a higher privilege than intended.
- Record
EUVD-2006-2773- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-985f-vgcq-rjrx No score
Certain privileged UI code in Mozilla Firefox and Thunderbird before 1.5.0.4 calls content...
Certain privileged UI code in Mozilla Firefox and Thunderbird before 1.5.0.4 calls content-defined setters on an object prototype, which allows remote attackers to execute code at a higher privilege than intended.
- Record
GHSA-985f-vgcq-rjrx- Updated
- 2026-11-02
OSV No score
Certain privileged UI code in Mozilla Firefox and Thunderbird before 1.5.0.4 calls content-defined setters on an object prototype, which allows remote attackers to execute code at a higher privilege than intended.
- Record
CVE-2006-2776- Updated
- 2026-11-02
OSVDEBIAN-CVE-2006-2776 No score
Certain privileged UI code in Mozilla Firefox and Thunderbird before 1.5.0.4 calls content-defined setters on an object prototype, which allows remote attackers to execute code at a higher privilege than intended.
- Record
DEBIAN-CVE-2006-2776- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
thunderbirdDebian:12 |
before 1.5.0.4-1 | 1.5.0.4-1 |
thunderbirdDebian:13 |
before 1.5.0.4-1 | 1.5.0.4-1 |
thunderbirdDebian:14 |
before 1.5.0.4-1 | 1.5.0.4-1 |
mozillaDebian:3.1 |
before 2:1.7.8-1sarge7.1, plus listed versions 2:1.7.8-12:1.7.8-1sarge12:1.7.8-1sarge22:1.7.8-1sarge32:1.7.8-1sarge52:1.7.8-1sarge62:1.7.8-1sarge7 |
2:1.7.8-1sarge7.1 |
mozilla-firefoxDebian:3.1 |
before 1.0.4-2sarge9, plus listed versions 1.0.4-21.0.4-2sarge11.0.4-2sarge21.0.4-2sarge31.0.4-2sarge41.0.4-2sarge51.0.4-2sarge61.0.4-2sarge7 |
1.0.4-2sarge9 |
mozilla-thunderbirdDebian:3.1 |
before 1.0.2-2.sarge1.0.8a, plus listed versions 1.0.2-21.0.2-2.sarge1.0.61.0.2-2.sarge1.0.71.0.2-2.sarge1.0.8 |
1.0.2-2.sarge1.0.8a |
seamonkeyRed Hat:enterprise_linux:3::as |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-chatRed Hat:enterprise_linux:3::as |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-debuginfoRed Hat:enterprise_linux:3::as |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-develRed Hat:enterprise_linux:3::as |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
Show 96 moreShow less
| Package | Affected | Fixed |
|---|---|---|
seamonkey-dom-inspectorRed Hat:enterprise_linux:3::as |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-js-debuggerRed Hat:enterprise_linux:3::as |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-mailRed Hat:enterprise_linux:3::as |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-nsprRed Hat:enterprise_linux:3::as |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-nspr-develRed Hat:enterprise_linux:3::as |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-nssRed Hat:enterprise_linux:3::as |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-nss-develRed Hat:enterprise_linux:3::as |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkeyRed Hat:enterprise_linux:3::desktop |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-chatRed Hat:enterprise_linux:3::desktop |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-debuginfoRed Hat:enterprise_linux:3::desktop |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-develRed Hat:enterprise_linux:3::desktop |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-dom-inspectorRed Hat:enterprise_linux:3::desktop |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-js-debuggerRed Hat:enterprise_linux:3::desktop |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-mailRed Hat:enterprise_linux:3::desktop |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-nsprRed Hat:enterprise_linux:3::desktop |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-nspr-develRed Hat:enterprise_linux:3::desktop |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-nssRed Hat:enterprise_linux:3::desktop |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-nss-develRed Hat:enterprise_linux:3::desktop |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkeyRed Hat:enterprise_linux:3::es |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-chatRed Hat:enterprise_linux:3::es |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-debuginfoRed Hat:enterprise_linux:3::es |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-develRed Hat:enterprise_linux:3::es |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-dom-inspectorRed Hat:enterprise_linux:3::es |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-js-debuggerRed Hat:enterprise_linux:3::es |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-mailRed Hat:enterprise_linux:3::es |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-nsprRed Hat:enterprise_linux:3::es |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-nspr-develRed Hat:enterprise_linux:3::es |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-nssRed Hat:enterprise_linux:3::es |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-nss-develRed Hat:enterprise_linux:3::es |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkeyRed Hat:enterprise_linux:3::ws |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-chatRed Hat:enterprise_linux:3::ws |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-debuginfoRed Hat:enterprise_linux:3::ws |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-develRed Hat:enterprise_linux:3::ws |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-dom-inspectorRed Hat:enterprise_linux:3::ws |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-js-debuggerRed Hat:enterprise_linux:3::ws |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-mailRed Hat:enterprise_linux:3::ws |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-nsprRed Hat:enterprise_linux:3::ws |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-nspr-develRed Hat:enterprise_linux:3::ws |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-nssRed Hat:enterprise_linux:3::ws |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
seamonkey-nss-develRed Hat:enterprise_linux:3::ws |
before 0:1.0.2-0.1.0.EL3 | 0:1.0.2-0.1.0.EL3 |
devhelpRed Hat:enterprise_linux:4::as |
before 0:0.10-0.2.el4 | 0:0.10-0.2.el4 |
devhelp-debuginfoRed Hat:enterprise_linux:4::as |
before 0:0.10-0.2.el4 | 0:0.10-0.2.el4 |
devhelp-develRed Hat:enterprise_linux:4::as |
before 0:0.10-0.2.el4 | 0:0.10-0.2.el4 |
seamonkeyRed Hat:enterprise_linux:4::as |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-chatRed Hat:enterprise_linux:4::as |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-debuginfoRed Hat:enterprise_linux:4::as |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-develRed Hat:enterprise_linux:4::as |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-dom-inspectorRed Hat:enterprise_linux:4::as |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-js-debuggerRed Hat:enterprise_linux:4::as |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-mailRed Hat:enterprise_linux:4::as |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
devhelpRed Hat:enterprise_linux:4::desktop |
before 0:0.10-0.2.el4 | 0:0.10-0.2.el4 |
devhelp-debuginfoRed Hat:enterprise_linux:4::desktop |
before 0:0.10-0.2.el4 | 0:0.10-0.2.el4 |
devhelp-develRed Hat:enterprise_linux:4::desktop |
before 0:0.10-0.2.el4 | 0:0.10-0.2.el4 |
seamonkeyRed Hat:enterprise_linux:4::desktop |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-chatRed Hat:enterprise_linux:4::desktop |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-debuginfoRed Hat:enterprise_linux:4::desktop |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-develRed Hat:enterprise_linux:4::desktop |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-dom-inspectorRed Hat:enterprise_linux:4::desktop |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-js-debuggerRed Hat:enterprise_linux:4::desktop |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-mailRed Hat:enterprise_linux:4::desktop |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
devhelpRed Hat:enterprise_linux:4::es |
before 0:0.10-0.2.el4 | 0:0.10-0.2.el4 |
devhelp-debuginfoRed Hat:enterprise_linux:4::es |
before 0:0.10-0.2.el4 | 0:0.10-0.2.el4 |
devhelp-develRed Hat:enterprise_linux:4::es |
before 0:0.10-0.2.el4 | 0:0.10-0.2.el4 |
seamonkeyRed Hat:enterprise_linux:4::es |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-chatRed Hat:enterprise_linux:4::es |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-debuginfoRed Hat:enterprise_linux:4::es |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-develRed Hat:enterprise_linux:4::es |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-dom-inspectorRed Hat:enterprise_linux:4::es |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-js-debuggerRed Hat:enterprise_linux:4::es |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-mailRed Hat:enterprise_linux:4::es |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
devhelpRed Hat:enterprise_linux:4::ws |
before 0:0.10-0.2.el4 | 0:0.10-0.2.el4 |
devhelp-debuginfoRed Hat:enterprise_linux:4::ws |
before 0:0.10-0.2.el4 | 0:0.10-0.2.el4 |
devhelp-develRed Hat:enterprise_linux:4::ws |
before 0:0.10-0.2.el4 | 0:0.10-0.2.el4 |
seamonkeyRed Hat:enterprise_linux:4::ws |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-chatRed Hat:enterprise_linux:4::ws |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-debuginfoRed Hat:enterprise_linux:4::ws |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-develRed Hat:enterprise_linux:4::ws |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-dom-inspectorRed Hat:enterprise_linux:4::ws |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-js-debuggerRed Hat:enterprise_linux:4::ws |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
seamonkey-mailRed Hat:enterprise_linux:4::ws |
before 0:1.0.3-0.el4.1 | 0:1.0.3-0.el4.1 |
firefoxRed Hat:enterprise_linux:4::as |
before 0:1.5.0.5-0.el4.1 | 0:1.5.0.5-0.el4.1 |
firefox-debuginfoRed Hat:enterprise_linux:4::as |
before 0:1.5.0.5-0.el4.1 | 0:1.5.0.5-0.el4.1 |
firefoxRed Hat:enterprise_linux:4::desktop |
before 0:1.5.0.5-0.el4.1 | 0:1.5.0.5-0.el4.1 |
firefox-debuginfoRed Hat:enterprise_linux:4::desktop |
before 0:1.5.0.5-0.el4.1 | 0:1.5.0.5-0.el4.1 |
firefoxRed Hat:enterprise_linux:4::es |
before 0:1.5.0.5-0.el4.1 | 0:1.5.0.5-0.el4.1 |
firefox-debuginfoRed Hat:enterprise_linux:4::es |
before 0:1.5.0.5-0.el4.1 | 0:1.5.0.5-0.el4.1 |
firefoxRed Hat:enterprise_linux:4::ws |
before 0:1.5.0.5-0.el4.1 | 0:1.5.0.5-0.el4.1 |
firefox-debuginfoRed Hat:enterprise_linux:4::ws |
before 0:1.5.0.5-0.el4.1 | 0:1.5.0.5-0.el4.1 |
thunderbirdRed Hat:enterprise_linux:4::as |
before 0:1.5.0.5-0.el4.1 | 0:1.5.0.5-0.el4.1 |
thunderbird-debuginfoRed Hat:enterprise_linux:4::as |
before 0:1.5.0.5-0.el4.1 | 0:1.5.0.5-0.el4.1 |
thunderbirdRed Hat:enterprise_linux:4::desktop |
before 0:1.5.0.5-0.el4.1 | 0:1.5.0.5-0.el4.1 |
thunderbird-debuginfoRed Hat:enterprise_linux:4::desktop |
before 0:1.5.0.5-0.el4.1 | 0:1.5.0.5-0.el4.1 |
thunderbirdRed Hat:enterprise_linux:4::es |
before 0:1.5.0.5-0.el4.1 | 0:1.5.0.5-0.el4.1 |
thunderbird-debuginfoRed Hat:enterprise_linux:4::es |
before 0:1.5.0.5-0.el4.1 | 0:1.5.0.5-0.el4.1 |
thunderbirdRed Hat:enterprise_linux:4::ws |
before 0:1.5.0.5-0.el4.1 | 0:1.5.0.5-0.el4.1 |
thunderbird-debuginfoRed Hat:enterprise_linux:4::ws |
before 0:1.5.0.5-0.el4.1 | 0:1.5.0.5-0.el4.1 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |
References
sunsolve.sun.com/search/document.do?assetkey=1-26-102800-1
secunia.com/advisories/20709
mandriva.com/security/advisories?name=MDKSA-2006:145
vupen.com/english/advisories/2006/3748
usn.ubuntu.com/297-3
Show 175 moreShow less
us-cert.gov/cas/techalerts/TA06-153A.html
exchange.xforce.ibmcloud.com/vulnerabilities/26848
redhat.com/support/errata/RHSA-2006-0594.html
securitytracker.com/id?1016214
securityfocus.com/archive/1/435795/100/0/threaded
rhn.redhat.com/errata/RHSA-2006-0609.html
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9849
kb.cert.org/vuls/id/575969
gentoo.org/security/en/glsa/glsa-200606-21.xml
debian.org/security/2006/dsa-1118
mozilla.org/security/announce/2006/mfsa2006-37.html
novell.com/linux/security/advisories/2006_35_mozilla.html
nvd.nist.gov/vuln/detail/CVE-2006-2776
github.com/advisories/GHSA-985f-vgcq-rjrx
security-tracker.debian.org/tracker/CVE-2006-2776
access.redhat.com/errata/RHSA-2006:0578
bugzilla.redhat.com/show_bug.cgi?id=196971
security.access.redhat.com/data/csaf/v2/advisories/2006/rhsa-2006_0578.json
cve.org/CVERecord?id=CVE-2006-2776