Stack-based Buffer Overflow Affecting codechecker package, versions [,6.26.2)
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-PYTHON-CODECHECKER-13004615
- published23 Sept 2025
- disclosed22 Sept 2025
- creditBarnabás Domozi
Introduced: 22 Sep 2025
NewCVE-2025-40843 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade codechecker to version 6.26.2 or higher.
Overview
codechecker is an analyzer tooling, defect database and viewer extension
Affected versions of this package are vulnerable to Stack-based Buffer Overflow via the strcpy() function in the internal ldlogger library. An attacker can execute arbitrary code or cause a crash by supplying crafted input to the log command, which is processed without proper length checks on a stack-allocated buffer.