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I. Basic Information for CVE-2026-33491
Vulnerability Information

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Vulnerability Title
Zen-C has Stack-Based Buffer Overflow in Identifier Mangling
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
栈缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
Zen C 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zen C是z-libs开源的一个现代系统编程语言。 Zen C 0.4.4之前版本存在缓冲区错误漏洞,该漏洞源于编译器存在基于栈的缓冲区溢出,可能导致编译器崩溃或执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
zenc-langzenc < 0.4.4 -
II. Public POCs for CVE-2026-33491
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III. Intelligence Information for CVE-2026-33491
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IV. Related Vulnerabilities
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