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CVE-2026-123199

eBook-speaker through 6.2.0 Stack-based Buffer Overflow via element name attribute

6.8 Medium

eBook-speaker 6.1.0 through 6.2.0 contains a stack buffer overflow vulnerability in get_attributes() in src/common.c caused by an unbounded strcpy of an element's name attribute. Attackers can craft an EPUB or DAISY book with a name attribute of 511 or more characters to corrupt the stack and crash the reader when opened.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
Passive

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.14%Unchanged since Nov 6, 2026
90%50%10%1%

What each source reports

CVE List Score used 6.8

eBook-speaker through 6.2.0 Stack-based Buffer Overflow via element name attribute

eBook-speaker 6.1.0 through 6.2.0 contains a stack buffer overflow vulnerability in get_attributes() in src/common.c caused by an unbounded strcpy of an element's name attribute. Attackers can craft an EPUB or DAISY book with a name attribute of 511 or more characters to corrupt the stack and crash the reader when opened.

Record
CVE-2026-123199
CVSS 4.0
6.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-120
Updated
2026-11-05
EUVDEUVD-2026-117644 6.8

eBook-speaker 6.1.0 through 6.2.0 contains a stack buffer overflow vulnerability in get_attributes() in src/common.c caused by an unbounded strcpy of an element's name attribute. Attackers can craft an EPUB or DAISY book with a name attribute of 511 or more characters to corrupt the stack and crash the reader when opened.

Record
EUVD-2026-117644
CVSS 4.0
6.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Updated
2026-11-06
GitHub AdvisoriesGHSA-fpw6-9pxv-22cx 6.8

eBook-speaker 6.1.0 through 6.2.0 contains a stack buffer overflow vulnerability in...

eBook-speaker 6.1.0 through 6.2.0 contains a stack buffer overflow vulnerability in get_attributes() in src/common.c caused by an unbounded strcpy of an element's name attribute. Attackers can craft an EPUB or DAISY book with a name attribute of 511 or more characters to corrupt the stack and crash the reader when opened.

Record
GHSA-fpw6-9pxv-22cx
CVSS 4.0
6.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-120
Updated
2026-11-05
NVD 6.8

eBook-speaker 6.1.0 through 6.2.0 contains a stack buffer overflow vulnerability in get_attributes() in src/common.c caused by an unbounded strcpy of an element's name attribute. Attackers can craft an EPUB or DAISY book with a name attribute of 511 or more characters to corrupt the stack and crash the reader when opened.

Record
CVE-2026-123199
CVSS 4.0
6.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-120
Updated
2026-11-05
OSV 6.8

eBook-speaker through 6.2.0 Stack-based Buffer Overflow via element name attribute

eBook-speaker 6.1.0 through 6.2.0 contains a stack buffer overflow vulnerability in get_attributes() in src/common.c caused by an unbounded strcpy of an element's name attribute. Attackers can craft an EPUB or DAISY book with a name attribute of 511 or more characters to corrupt the stack and crash the reader when opened.

Record
CVE-2026-123199
CVSS 4.0
6.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Weakness
CWE-120
Updated
2026-11-07
OSVDEBIAN-CVE-2026-123199 5.5

eBook-speaker 6.1.0 through 6.2.0 contains a stack buffer overflow vulnerability in get_attributes() in src/common.c caused by an unbounded strcpy of an element's name attribute. Attackers can craft an EPUB or DAISY book with a name attribute of 511 or more characters to corrupt the stack and crash the reader when opened.

Record
DEBIAN-CVE-2026-123199
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-06
OSVUBUNTU-CVE-2026-123199 6.8

eBook-speaker 6.1.0 through 6.2.0 contains a stack buffer overflow vulnerability in get_attributes() in src/common.c caused by an unbounded strcpy of an element's name attribute. Attackers can craft an EPUB or DAISY book with a name attribute of 511 or more characters to corrupt the stack and crash the reader when opened.

Record
UBUNTU-CVE-2026-123199
CVSS 4.0
6.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-07

Affected products

Affected packages

Affected packages
PackageAffectedFixed
ebook-speaker
Debian:12
 All versions, plus listed versions
6.2.0-46.2.0-4+deb12u16.2.0-56.2.0-66.2.0-7
 None known
ebook-speaker
Debian:13
 All versions, plus listed versions
6.2.0-66.2.0-7
 None known
ebook-speaker
Debian:14
 All versions, plus listed versions
6.2.0-66.2.0-7
 None known
ebook-speaker
Ubuntu:16.04:LTS
 All versions, plus listed versions
2.8.1-12.8.1-1build1
 None known
ebook-speaker
Ubuntu:18.04:LTS
 All versions, plus listed versions
4.1.0-24.1.0-2build15.0.0-1
 None known
ebook-speaker
Ubuntu:20.04:LTS
 All versions, plus listed versions
5.3-2
 None known
ebook-speaker
Ubuntu:22.04:LTS
 All versions, plus listed versions
5.5.2-16.2.0-26.2.0-36.2.0-4
 None known
ebook-speaker
Ubuntu:24.04:LTS
 All versions, plus listed versions
6.2.0-46.2.0-56.2.0-5build16.2.0-5build2
 None known
ebook-speaker
Ubuntu:26.10
 All versions, plus listed versions
6.2.0-7build1
 None known
ebook-speaker
Ubuntu:26.04:LTS
 All versions, plus listed versions
6.2.0-76.2.0-7build1
 None known

History

History
RecordedChangedSources
affected, aliases, referencesOSV
affected, aliases, referencesOSV
publishedEUVD
publishedEUVD
referencesNVD, OSV
aliases, referencesGitHub Advisories
cwes, references, severity, titleCVE List
first indexedEUVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-123199 is a medium vulnerability (CVSS 6.8) in Book-readers Ebook-speaker, published November 5, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. No source names a fixed version.

References

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