Vulnerability Details CVE-2026-33491
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 2.4%
CVSS Severity
CVSS v3 Score 7.8
Products affected by CVE-2026-33491
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cpe:2.3:a:zenc-lang:zen_c:0.1.0
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cpe:2.3:a:zenc-lang:zen_c:0.1.1
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cpe:2.3:a:zenc-lang:zen_c:0.1.2
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cpe:2.3:a:zenc-lang:zen_c:0.1.3
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cpe:2.3:a:zenc-lang:zen_c:0.4.0
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cpe:2.3:a:zenc-lang:zen_c:0.4.1
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cpe:2.3:a:zenc-lang:zen_c:0.4.2
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cpe:2.3:a:zenc-lang:zen_c:0.4.3