---
id: CVE-2025-40843
title: >-
  CodeChecker is an analyzer tooling, defect database and viewer extension for
  the Clang Static Analyzer and Clang Tidy
summary: "CodeChecker is an analyzer tooling, defect database and viewer extension for the Clang Static Analyzer and Clang Tidy. \n\n\n\n\nCodeChecker versions up to 6.26.1 contain a buffer overflow vulnerability in the internal ldlogger\_library, which…"
severity: medium
cvss: 5.9
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-121
vendor: ericsson
product: codechecker
affected:
  - codechecker < 6.26.2
patched:
  - codechecker 6.26.2
published: '2025-10-28'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T11:10:00.250'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-40843'
references:
  - url: >-
      https://github.com/Ericsson/codechecker/security/advisories/GHSA-5xf2-f6ch-6p8r
    label: 85b1779b-6ecd-4f52-bcc5-73eac4659dcf
tags:
  - nvd
epss: 0.00191
epssPercentile: 0.07983
ingestedAt: '2026-10-08T11:31:27.663Z'
---

## Overview

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.

## Affected

- `codechecker < 6.26.2`

## Remediation

Upgrade past the affected range:

- `codechecker 6.26.2`