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  4. CVE 2026 123199 ebook speaker through 620 stack based buffer
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Back to active CVEs
Medium · CVSS 6.8CVE-2026-123199

eBook-speaker through 6.2.0 Stack-based Buffer Overflow via element name attributeCVE-2026-123199

Answer in brief

CVE-2026-123199 records a Medium severity (CVSS 6.8) vulnerability in eBook-speaker through 6.2.0 Stack-based Buffer Overflow via element name attribute. The current sources do not mark it as known exploited. The current feed maps book-readers/eBook-speaker (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 5, 2026Updated Nov 5, 2026Source checked Nov 5, 2026First seen by HOL Nov 5, 2026Material review Nov 5, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.8
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 6.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps book-readers/eBook-speaker (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
book-readers/eBook-speakergeneric>=6.1.0 <=6.2.0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for book-readers/eBook-speaker.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Nov 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 5, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Buffer Overflow
EPSS
Not reported
CWE IDs
CWE-120
Source
CVE List V5
Source checked
Nov 5, 2026
References
3 linked sources
Open source record