CVE-2026-33491
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
ProductZenc-lang Zen C
PublishedMar 26, 2026
First seenMar 26, 2026
Weakness typeCWE-121CWE-121CWE-787Out-of-bounds write
How to fix
Update
- zenc-lang zen_c0.4.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| zenc-lang zen_c | v < 0.4.4 | 0.4.4 |
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