A vulnerability in the XAR 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 XAR files during scanning. An attacker could exploit this vulnerability by submitting a crafted file that contains XAR 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.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-WuuvVd26 Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.5 · ciscoNVD modified 2026-10-23 20:10
Affected (CPE criteria) 3
cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:macos:*:*cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:linux:*:*cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:windows:*:*