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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

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

No data.

No data.

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No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-WuuvVd26 cve-icon
History

Fri, 07 Aug 2026 16:45:00 +0000

Type Values Removed Values Added
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.
Title ClamAV PDF File Format Processing Memory Corruption Vulnerability
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-08-07T18:12:29.718Z

Reserved: 2025-10-08T11:59:15.413Z

Link: CVE-2026-20346

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-07T17:30:16Z

Weaknesses