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CVE Vulnerability Details :

CVE-2026-33491

PUBLISHED

More Info Official Page

Assigner-GitHub_M

Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa

Published At-26 Mar, 2026 | 18:39

Updated At-27 Mar, 2026 | 03:55

▼CVE Numbering Authority (CNA)

Zen-C has Stack-Based Buffer Overflow in Identifier Mangling

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.

Affected Products

Vendor

zenc-lang

Product

zenc

Versions

Affected

< 0.4.4

Problem Types

Type	CWE ID	Description
CWE	CWE-121	CWE-121: Stack-based Buffer Overflow
CWE	CWE-787	CWE-787: Out-of-bounds Write

Type: CWE

CWE ID: CWE-121

Description: CWE-121: Stack-based Buffer Overflow

Type: CWE

CWE ID: CWE-787

Description: CWE-787: Out-of-bounds Write

Metrics

Version	Base score	Base severity	Vector
3.1	7.8	HIGH	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Version: 3.1

Base score: 7.8

Base severity: HIGH

Vector:

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Hyperlink	Resource
https://github.com/zenc-lang/zenc/security/advisories/GHSA-rv74-w6q7-h8xr	x_refsource_CONFIRM

Hyperlink: https://github.com/zenc-lang/zenc/security/advisories/GHSA-rv74-w6q7-h8xr

Resource:

x_refsource_CONFIRM

▼Authorized Data Publishers (ADP)

CISA ADP Vulnrichment

Affected Products

Affected

Problem Types

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Metrics Other Info

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Replaced By

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References

Affected Products

Metrics

Metrics Other Info

Impacts

Solutions

Configurations

Workarounds

Exploits

Credits

Timeline

Replaced By

Rejected Reason

References