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High severity7.8NVD Advisory· Published Mar 26, 2026· Updated May 1, 2026

CVE-2026-33491

CVE-2026-33491

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.

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Affected products

2
  • Zenc Lang/Zen C2 versions
    cpe:2.3:a:zenc-lang:zen_c:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:zenc-lang:zen_c:*:*:*:*:*:*:*:*range: <0.4.4
    • (no CPE)range: <0.4.4

Patches

Vulnerability mechanics

References

1

News mentions

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