BaseFortify

Publication date: 2025-10-28

Last updated on: 2025-11-14

Assigner: Ericsson

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2025-10-28

Last Modified

2025-11-14

Generated

2026-07-06

AI Q&A

2025-10-28

EPSS Evaluated

2026-07-05

NVD

CVE-2025-40843

Affected Vendors & Products

Vendor	Product	Version / Range
ericsson	codechecker	to 6.26.2 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-121	A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

Attack-Flow Graph

Executive Summary

This vulnerability is a buffer overflow in the internal ldlogger library used by the CodeChecker log command in CodeChecker versions up to 6.26.1. A buffer overflow occurs when more data is written to a buffer than it can hold, potentially leading to unexpected behavior or exploitation.

Impact Analysis

The buffer overflow vulnerability can lead to impacts on confidentiality, integrity, and availability of the affected system, as indicated by the CVSS score. This means an attacker could potentially cause data leakage, data modification, or denial of service by exploiting this issue locally.

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