Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-95453.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-95453
Upstream
  • CVE-2026-20339
Published
2026-08-07T17:17:02Z
Modified
2026-08-30T05:26:50Z
Summary
CVE-2026-20339 affecting package clamav 1.5.3-1
Details

A vulnerability in the PESpin file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition or possibly other expanded impacts as a result of memory corruption on an affected device.

This vulnerability is due to improper boundary checks for content in PESpin files during scanning, which may result in an integer overflow. An attacker could exploit this vulnerability by submitting a crafted file that contains PESpin content to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate, resulting in a DoS condition on the affected software.

References

Affected packages

Azure Linux:3 / clamav

Package

Name
clamav
Purl
pkg:rpm/azure-linux/clamav

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Last affected
1.5.3-1

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-95453.json"