CVE-2026-33491 — Zen-C has Stack-Based Buffer Overflow in Identifier Mangling
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 allo…
Published: 2026-03-26 · CVSS: 7.8 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7