{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-28T10:20:04.297","vulnerabilities":[{"cve":{"id":"CVE-2026-33491","sourceIdentifier":"security-advisories@github.com","published":"2026-03-26T19:17:04.333","lastModified":"2026-06-17T10:37:35.473","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","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."},{"lang":"es","value":"Zen C es un lenguaje de programación de sistemas que compila a GNU C/C11 legible por humanos. Antes de la versión 0.4.4, una vulnerabilidad de desbordamiento de búfer basado en pila en el compilador de Zen C permite a los atacantes causar un fallo del compilador o potencialmente ejecutar código arbitrario al proporcionar un archivo fuente de Zen C especialmente diseñado ('.zc') con identificadores de estructura, función o rasgo excesivamente largos. Se aconseja a los usuarios actualizar a la versión v0.4.4 de Zen C o posterior para recibir un parche."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"zenc-lang","product":"zenc","versions":[{"version":"< 0.4.4","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-03-26T00:00:00+00:00","id":"CVE-2026-33491","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-121"},{"lang":"en","value":"CWE-787"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:zenc-lang:zen_c:*:*:*:*:*:*:*:*","versionEndExcluding":"0.4.4","matchCriteriaId":"87358648-AF3A-4D67-86CE-03A43A883BC1"}]}]}],"references":[{"url":"https://github.com/zenc-lang/zenc/security/advisories/GHSA-rv74-w6q7-h8xr","source":"security-advisories@github.com","tags":["Exploit","Mitigation","Vendor Advisory"]}]}}]}