CVE-2026-33491
Zen-C has Stack-Based Buffer Overflow in Identifier Mangling
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-121 CWE-787 |
| Vendor | zenc-lang |
| Product | zenc |
| Published | Mar 26, 2026 |
| Last Updated | Mar 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
zenc-lang / zenc
< 0.4.4