Cyber Resilience

CVE-2022-23850

HighPublic PoC

Published: 23 January 2022

Published
23 January 2022
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0018 39.3th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2022-23850 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Epub2Txt Project Epub2Txt. Its CVSS base score is 7.8 (High).

Operationally, ranked at the 39.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

xhtml_translate_entity in xhtml.c in epub2txt (aka epub2txt2) through 2.02 allows a stack-based buffer overflow via a crafted EPUB document.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

epub2txt project
epub2txt
≤ 2.02

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.

References