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.
Metrics
Affected Vendors & Products
| Vendors | Products |
|---|---|
| Cisco |
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References
History
Thu, 05 Mar 2026 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Thu, 05 Mar 2026 09:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Cisco
Cisco secure Endpoint |
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| Vendors & Products |
Cisco
Cisco secure Endpoint |
Wed, 04 Mar 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | ClamAV CSS Image Parsing Error Handling Denial of Service Vulnerability | |
| Weaknesses | CWE-248 | |
| References |
| |
| Metrics |
cvssV3_1
|
MITRE
Status: PUBLISHED
Assigner: cisco
Published: 2026-03-04T17:17:33.372Z
Updated: 2026-03-05T15:52:07.708Z
Reserved: 2025-10-08T11:59:15.353Z
Link: CVE-2026-20031
Vulnrichment
Updated: 2026-03-05T15:52:03.337Z
NVD
Status : Awaiting Analysis
Published: 2026-03-04T18:16:16.773
Modified: 2026-03-05T19:39:11.967
Link: CVE-2026-20031
Redhat
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