CVE-2025-40843 Vulnerability Analysis & Exploit Details

CVE-2025-40843
Vulnerability Scoring

5.9

/10

Significant Risk

Security assessments indicate that CVE-2025-40843 presents a notable risk, potentially requiring prompt mitigation.

Attack Complexity Details

Attack Complexity: Low
Exploits can be performed without significant complexity or special conditions.
Attack Vector: Local
Vulnerability requires local system access.
Privileges Required: None
No privileges are required for exploitation.
Scope: Unchanged
Exploit remains within the originally vulnerable component.
User Interaction: None
No user interaction is necessary for exploitation.

CVE-2025-40843 Details

Status: Analyzed

Last updated: 🕡 14 Nov 2025, 18:52 UTC
Originally published on: 🕖 28 Oct 2025, 19:15 UTC

Time between publication and last update: 16 days

CVSS Release: version 3

CVSS3 Source

85b1779b-6ecd-4f52-bcc5-73eac4659dcf

CVSS3 Type

Secondary

CVSS3 Vector

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

CVE-2025-40843 Vulnerability Summary

CVE-2025-40843: 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.

Assessing the Risk of CVE-2025-40843

Access Complexity Graph

The exploitability of CVE-2025-40843 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2025-40843

With low attack complexity and no required privileges, CVE-2025-40843 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2025-40843, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2025-40843, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

Confidentiality: Low
CVE-2025-40843 could lead to minor leaks of non-critical information without major privacy breaches.
Integrity: Low
Exploiting CVE-2025-40843 may cause minor changes to data without severely impacting its accuracy.
Availability: Low
CVE-2025-40843 may slightly degrade system performance without fully affecting service availability.

CVE-2025-40843 References

External References

https://github.com/Ericsson/codechecker/security/advisories/GHSA-5xf2-f6ch-6p8r

CWE Common Weakness Enumeration

CWE-121

Vulnerable Configurations

cpe:2.3:a:ericsson:codechecker:-:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:-:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:4.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:4.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.3:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.3:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.4:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.4:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.5:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.5:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.6:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.6:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.7:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.7:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.7.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.7.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.8:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.8:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.9:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.9:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.10:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:5.10:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.0.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.0.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.1.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.1.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.2:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.2:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.2.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.2.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.3:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.3:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.4:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.4:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.5:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.5:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.5.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.5.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.6.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.6.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.7.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.7.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.7.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.7.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.8.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.8.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.8.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.8.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.9.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.9.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.9.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.9.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.10.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.10.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.10.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.10.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.11.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.11.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.11.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.11.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.12.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.12.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.12.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.12.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.13.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.13.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.14.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.14.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.15.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.15.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.15.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.15.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.15.2:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.15.2:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.16.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.16.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.17.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.17.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.18.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.18.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.18.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.18.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.18.2:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.18.2:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.19.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.19.0:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.19.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.19.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.20.0:-:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.20.0:-:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.20.0:rc1:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.20.0:rc1:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.21.0:-:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.21.0:-:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.21.0:rc1:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.21.0:rc1:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.22.0:-:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.22.0:-:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.22.0:rc1:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.22.0:rc1:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.22.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.22.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.22.2:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.22.2:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.23.0:-:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.23.0:-:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.23.0:rc1:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.23.0:rc1:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.23.0:rc2:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.23.0:rc2:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.23.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.23.1:*:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.24.0:-:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.24.0:-:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.24.0:rc1:*:*:*:*:*:*
cpe:2.3:a:ericsson:codechecker:6.24.0:rc1:*:*:*:*:*:*

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