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CVE-2026-20339

ClamAV PESpin File Format Processing Integer Overflow Vulnerability PUBLISHED

Description (CNA)

A vulnerability in the PESpin 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 PESpin files during scanning, which may result in an integer overflow. An attacker could exploit this vulnerability by submitting a crafted file that contains PESpin content 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.

Affected (CNA)

Vendor / productVersions
Cisco / Cisco Secure Endpointaffected 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 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 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

CWE

CWE-190

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.