VULNERABILITY INTELLIGENCE

CVE-2026-33491

CVSS score7.8 HIGH
EPSS probability0.24%
CISA KEVNot currently listed
Published2026-03-26
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

Zen C is a systems programming language that compiles to human-readable GNU C/C11. Prior to version 0.4.4, a stack-based buffer overflow vulnerability in the Zen C compiler allows attackers to cause a compiler crash or potentially execute arbitrary code by providing a specially crafted Zen C source file (`.zc`) with excessively long struct, function, or trait identifiers. Users are advised to update to Zen C version v0.4.4 or later to receive a patch.

Weakness classification

  • security-advisories@github.com: CWE-121

Primary references