CVE-2026-33491

7.8 highEPSS 0.2%

High (7.8) in zenc-lang zen c. EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.8 high

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

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 15% of CVEs (scores of 2026-10-31)
CWEs: CWE-121, CWE-787
Published: 2026-03-26
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

zenc-lang:zen_c

References

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

Check your stack JSON