CVE-2019-1789: ClamAV Denial of Service Vulnerability

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-11-05 · updated 2026-06-17
Weakness: CWE-20

Description

ClamAV versions prior to 0.101.2 are susceptible to a denial of service (DoS) vulnerability. An out-of-bounds heap read condition may occur when scanning PE files. An example is Windows EXE and DLL files that have been packed using Aspack as a result of inadequate bound-checking.

Affected products

Cisco ClamAV: before 0.101.2 — fixed in 0.101.2

How to fix

Upgrade to a fixed version: Cisco ClamAV 0.101.2. Check the vendor advisory for mitigations.

References

https://blog.clamav.net/2019/03/clamav-01012-and-01003-patches-have.html
https://blog.clamav.net/2019/03/clamav-01012-and-01003-patches-have.html

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