Riskcovery

CVE-2026-20216

ClamAV InstallShield File Format Processing Resource Exhaustion Vulnerability

State
Published
Severity
7.5 High
Published
Jul 1, 2026
Updated
Jul 1, 2026
Reserved
Oct 8, 2025

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hcisco

Weaknesses

  • CWE-770 Allocation of Resources Without Limits or Throttling

Affected Products

ProductVersions
Cisco Secure EndpointCisco
  • 7.0.5Affected
  • 6.2.19Affected
  • 7.3.3Affected
  • 7.2.13Affected
  • 6.1.5Affected
  • 6.3.1Affected
  • 6.2.5Affected
  • 7.3.5Affected
  • 6.2.1Affected
  • 7.2.7Affected
  • 7.1.1Affected
  • 6.3.5Affected
  • 6.2.9Affected
  • 7.3.1Affected
  • 6.1.7Affected
  • 7.2.11Affected
  • 7.2.3Affected
  • 7.1.5Affected
  • 6.3.3Affected
  • 7.3.9Affected
  • 6.2.3Affected
  • 6.1.9Affected
  • 6.0.9Affected
  • 7.2.5Affected
  • 6.0.7Affected
  • and 121 more versions

References

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