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CVE-2026-20216

7.5 high SSVC exploitation: none Analyzed
NVD · CVE.org

A vulnerability in the InstallShield file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device. This vulnerability is due to improper handling of temporary resources during file scanning. An attacker could exploit this vulnerability by submitting a crafted InstallShield file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to terminate the ClamAV scanning process and temporarily consume available system resources, resulting in a DoS condition on the affected software.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 7.5 · cisco, clamavNVD modified 2026-10-25 17:10

Affected (CPE criteria) 4

  • cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:macos:*:*
  • cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:linux:*:*
  • cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:windows:*:*
  • cpe:2.3:a:clamav:clamav:*:*:*:*:*:*:*:*

References 1