CVE-2018-19974

PoC ×3—

CVSS 3.0

5.5 medium

EPSS

1%p68

Published

Dec 17, 2018 (Dec 17, 2018)

Modified

Jun 17, 2026

Description

In YARA 3.8.1, bytecode in a specially crafted compiled rule can read uninitialized data from VM scratch memory in libyara/exec.c. This can allow attackers to discover addresses in the real stack (not the YARA virtual stack).

Vendors: virustotal
Products: yara
Weakness: CWE-908
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (1.3%)

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