CVE-2026-33491
HIGH
CVSS 7.8
No EPSS data
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.
CVSS details
EPSS
This CVE is not currently listed in the EPSS dataset.
Show JSON
{
"cve": {
"id": "CVE-2026-33491",
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"version": "3.1",
"baseScore": 7.8,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
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"published": "2026-03-26T19:17:04.333",
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"url": "https://github.com/zenc-lang/zenc/security/advisories/GHSA-rv74-w6q7-h8xr",
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"value": "CWE-121"
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"value": "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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"value": "Zen C es un lenguaje de programaci\u00f3n de sistemas que compila a GNU C/C11 legible por humanos. Antes de la versi\u00f3n 0.4.4, una vulnerabilidad de desbordamiento de b\u00fafer basado en pila en el compilador de Zen C permite a los atacantes causar un fallo del compilador o potencialmente ejecutar c\u00f3digo arbitrario al proporcionar un archivo fuente de Zen C especialmente dise\u00f1ado ('.zc') con identificadores de estructura, funci\u00f3n o rasgo excesivamente largos. Se aconseja a los usuarios actualizar a la versi\u00f3n v0.4.4 de Zen C o posterior para recibir un parche."
}
],
"lastModified": "2026-04-02T18:22:46.130",
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