CVE-2017-6420: Clamav

Medium severity, CVSS 5.5. EPSS: 1.4% chance of exploitation in the next 30 days.

The wwunpack function in libclamav/wwunpack.c in ClamAV 0.99.2 allows remote attackers to cause a denial of service (use-after-free) via a crafted PE file with WWPack compression.

Affected products

• Clamav Clamav: version 0.99.2 only

Published 2017-08-07. Last modified 2026-06-17.