Description

A vulnerability in the HTML Cascading Style Sheets (CSS) module of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper error handling when splitting UTF-8 strings. An attacker could exploit this vulnerability by submitting a crafted HTML file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to terminate the scanning process.

INFO

Published Date :

2026-03-04T17:17:33.372Z

Last Modified :

2026-03-05T15:52:07.708Z

Source :

cisco
AFFECTED PRODUCTS

The following products are affected by CVE-2026-20031 vulnerability.

Vendors Products
Cisco
  • Secure Endpoint
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-20031.

URL Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-css-Fn4QSZ cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact