CRITICAL 9.8 Microsoft
CVE-2025-20260
ClamAV PDF Scanning Buffer Overflow Vulnerability
Microsoft Security Update 2025-Jun: ClamAV PDF Scanning Buffer Overflow Vulnerability
Affected Products
- cbl2 clamav 1.0.9-1 on CBL Mariner 2.0
- azl3 clamav 1.0.9-1 on Azure Linux 3.0
- azl3 clamav 1.0.7-2 on Azure Linux 3.0
- cbl2 clamav 1.0.7-1 on CBL-Mariner 2.0
- cbl2 clamav 1.0.7-1 on CBL Mariner 2.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-20260
- https://nvd.nist.gov/vuln/detail/CVE-2025-20260
This critical severity vulnerability with a CVSS score of 9.8 was published on 2025-06-10 via Microsoft. Affected: cbl2 clamav 1.0.9-1 on CBL Mariner 2.0, azl3 clamav 1.0.9-1 on Azure Linux 3.0, azl3 clamav 1.0.7-2 on Azure Linux 3.0 and 2 more.
Risk Timeline
CVE Disclosed2025-06-10 · 477 days ago
Remediation Resources
Official Advisory
msrc.microsoft.com/update-guide/vulnerability/CVE-2025-20260NVD / MITRE
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