Riskcovery

CVE-2026-20346

ClamAV PDF File Format Processing Memory Corruption Vulnerability

State
Published
Severity
7.5 High
Published
Aug 7, 2026
Updated
Aug 7, 2026
Reserved
Oct 8, 2025

Read the record on cve.org

Description

A vulnerability in the PDF 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 PDF files during scanning, which may result in an out-of-bounds buffer read. An attacker could exploit this vulnerability by submitting a crafted PDF file 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.

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

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 137 more versions

References

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