CVE-2021-23180

PoC —

CVSS 3.1

7.8 high

EPSS

1%p70

Published

Mar 2, 2022 (Mar 2, 2022)

Modified

Jun 17, 2026

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.

Vendors: htmldoc project
Products: htmldoc
Weakness: CWE-476
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.4%)

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