CVE-2021-34121

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

An Out of Bounds flaw was discovered in htmodoc 1.9.12 in function parse_tree() in toc.cxx, this possibly leads to memory layout information leaking in the data. This might be used in a chain of vulnerability in order to reach code execution.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-125

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/michaelrsweet/htmldoc/commit/c67bbd8756f015e33e4ba639a40c7f9d8bd9e8abPatch
https://github.com/michaelrsweet/htmldoc/issues/433Exploit, Issue Tracking
https://github.com/michaelrsweet/htmldoc/commit/c67bbd8756f015e33e4ba639a40c7f9d8bd9e8abPatch
https://github.com/michaelrsweet/htmldoc/issues/433Exploit, Issue Tracking

Timeline

Published: Jul 18, 2023
Last modified: Jun 17, 2026
NVD status: Modified

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