CVE-2021-23180

medium
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
5.5

Description

A flaw was found in htmldoc in v1.9.12 and before. Null pointer dereference in file_extension(),in file.c may lead to execute arbitrary code and denial of service.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-23180

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-23180.html

OS impact

OSVersionStatusFixed in
arch archfixed1.9.12-1
suse slesaffected
debian debianbookwormfixed1.9.11-4
debian debianbullseyefixed1.9.11-4
debian debianforkyfixed1.9.11-4
debian debiansidfixed1.9.11-4
debian debiantrixiefixed1.9.11-4

References

Verify integrity in audit chain (admin only). AS-IS.