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
Source GCVE Database
Not known to be exploited · CVSS 6.8 Medium.
Data as of 5 Nov 2026, 22:34 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 6.8 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 5.5 |
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 5 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| book-readerseBook-speaker | Affected
| Fixed in– |
GitHubeBook-speakerpkg:github/eBook-speakerOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
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.
References
- nvd.nist.gov/vuln/detail/CVE-2026-123199 (opens in a new tab)
- github.com/book-readers/ebook-speaker/commit/23b5c86585d7e3c27c932b112f4e36858e70f210 (opens in a new tab)
- github.com/book-readers/ebook-speaker/blob/4a8f457a0fd65a96463c0fa9bd0612242c081dc8/src/common.c (opens in a new tab)
- vulncheck.com/advisories/ebook-speaker-through-6.2.0-stack-based-buffer-overflow-via-element-name-attribute (opens in a new tab)