What is CVE-2021-34121?

CVE-2021-34121 is a high-severity vulnerability in Htmldoc_project Htmldoc, classified under Out-of-bounds Read. CVSS score: 7.8/10. Published 2023-07-18.

How severe is CVE-2021-34121?

High severity. CVSS v3 base score is 7.8 out of 10.

Out-of-bounds Read in Htmldoc_project Htmldoc

CVE-2021-34121

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 executi…

Vulnerability class: Buffer Overflow

EPSS: 0.003 (25.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Htmldoc_project Htmldoc — versions 1.9.12
N/a — versions n/a

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

cve@mitre.org (Exploit, Issue Tracking)
cve@mitre.org (Patch)

Frequently asked questions

What is CVE-2021-34121?: CVE-2021-34121 is a high-severity vulnerability in Htmldoc_project Htmldoc, classified under Out-of-bounds Read. CVSS score: 7.8/10. Published 2023-07-18.
How severe is CVE-2021-34121?: High severity. CVSS v3 base score is 7.8 out of 10.