CVE-2026-33491

HIGH

7.8

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.

CVE Details

CVSS v3.1 Score7.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published3/26/2026

Last Modified4/2/2026

Sourcenvd

Honeypot Sightings0

Affected Products

z-libs:zen_c

Weaknesses (CWE)

CWE-121CWE-787

References

https://github.com/zenc-lang/zenc/security/advisories/GHSA-rv74-w6q7-h8xr(security-advisories@github.com)

IOC Correlations

No correlations recorded

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