CVE-2024-20290

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 33.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-02-07 · updated 2026-06-17
Weakness: CWE-126

Description

A vulnerability in the OLE2 file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to an incorrect check for end-of-string values during scanning, which may result in a heap buffer over-read. An attacker could exploit this vulnerability by submitting a crafted file containing OLE2 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 and consuming available system resources. For a description of this vulnerability, see the ClamAV blog .

Affected products

Cisco Secure Endpoint: before 7.5.17; from 8.0.1.21160 before 8.2.3.30119 — fixed in 7.5.17, 8.2.3.30119
Cisco Secure Endpoint Private Cloud: before 3.8.0 — fixed in 3.8.0
Fedoraproject Fedora: 38, 39

How to fix

Upgrade to a fixed version: Cisco Secure Endpoint 7.5.17, 8.2.3.30119; Cisco Secure Endpoint Private Cloud 3.8.0. Check the vendor advisory for mitigations.

References

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