CVE-2025-40843
CodeChecker has a buffer overflow in the log command
5.9
MEDIUM
CVSS 3.1
EPSS 0.02%
Description
CodeChecker is an analyzer tooling, defect database and viewer extension for the Clang Static Analyzer and Clang Tidy. CodeChecker versions up to 6.26.1 contain a buffer overflow vulnerability in the internal ldlogger library, which is executed by the CodeChecker log command. This issue affects CodeChecker: through 6.26.1.
How to fix CVE-2025-40843
To remediate CVE-2025-40843, upgrade the affected package to a fixed version below.
- —upgrade to 6.26.2 or later
- —upgrade to 6.26.2 or later
Is CVE-2025-40843 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 6.26.2
- from 0, < 6.26.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |