CVE-2026-33491
Zen-C has Stack-Based Buffer Overflow in Identifier Mangling
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 7.8EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
26 Mar 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
zenc-lang · zenc