🔐 CVE Alert

CVE-2026-20346

HIGH 7.5

ClamAV PDF File Format Processing Memory Corruption Vulnerability

CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-125
Vendor cisco
Product cisco secure endpoint
Ecosystems
Industries
NetworkingTelecommunications
Published Aug 7, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Affected Versions

Cisco / Cisco Secure Endpoint
7.0.5 6.2.19 7.3.3 7.2.13 6.1.5 6.3.1 6.2.5 7.3.5 6.2.1 7.2.7 7.1.1 6.3.5 6.2.9 7.3.1 6.1.7 7.2.11 7.2.3 7.1.5 6.3.3 7.3.9 6.2.3 6.1.9 6.0.9 7.2.5 6.0.7 6.3.7 1.12.3 1.8.0 1.11.1 1.12.4 1.10.0 1.12.0 1.8.1 1.10.1 1.12.1 1.12.6 1.14.0 1.10.2 1.12.7 1.12.2 1.6.0 1.9.0 1.11.0 1.7.0 1.13.0 1.8.4 1.13.1 1.9.1 1.12.5 1.13.2 2.0.2 1.1.0 2.0.0 2.0.1 8.1.7.21512 8.1.7 8.1.5 8.1.3.21242 8.1.3 8.1.5.21322 8.1.7.21417 2.1.0.14 2.2.0 2.3.0 2.4.0 2.5.0 2.6.0 2.7.0 2.8.0 2.9.0 2.10.0 2.10.1 2.11.0 1.14.1 1.15.1 1.15.2 1.15.3 1.15.4 1.15.5 1.15.6 1.16.0 1.16.1 1.16.2 1.16.3 1.18.0 1.18.1 1.20.0 1.21.0 1.21.1 1.21.2 1.21.3 1.22.0 1.22.1 1.22.2 1.22.3 1.22.4 1.24.0 1.24.1 1.24.2 1.24.3 1.24.4 1.26.0 1.24.5 1.26.1 1.27.0 1.15.0 1.17.0 1.17.1 1.17.2 1.19.0 1.20.1 1.20.2 1.20.3 1.20.4 1.20.5 1.20.6 1.23.0 1.23.1 1.20.7 1.20.8 1.25.0 1.25.1 1.25.2 1.27.1 1.27.2 7.3.13 7.3.15 7.4.1 7.4.1.20425 7.4.1.20439 7.4.3 7.4.3.20679 7.4.5 7.5.1.20813 7.5.1.20833 7.5.3 7.5.5 8.0.1.21160 8.0.1.21164 7.5.7 7.5.9 7.5.11 8.1.7.21585 7.5.13.21586 7.5.13.21598 8.2.1.21612 8.2.1.21650 7.5.15.21611 7.5.17.21680 8.2.3.30119 8.2.4.30130 8.4.0 7.5.19 8.4.1.30298 8.4.2.30317 8.4.1.30307 7.5.20 8.4.3 8.4.4.30419 8.4.4.30467 7.5.21.21732 8.4.5.30483

References

NVD ↗ CVE.org ↗ EPSS Data ↗
sec.cloudapps.cisco.com: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-WuuvVd26