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CVE-2025-40843

24
FAUCET Score

CVE-2025-40843 is a high-severity buffer overflow vulnerability affecting CodeChecker versions up to 6.26.1. This flaw resides in the internal ldlogger library, specifically triggered by the CodeChecker log command. With a CVSS score of 7.8, successful exploitation could lead to high impact on confidentiality, integrity, and availability, requiring local access and low privileges. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.26.2CPE matchmatch criteria
cpe:2.3:a:ericsson:codechecker:*:*:*:*:*:*:*:*
>= 0, <= 6.26.1CPE match
cpe:2.3:a:ericsson:codechecker:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.5
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
7.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0018 is in the 30th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

pippatch availablevia ghsa
Product: codecheckerFixed in: 6.26.2
github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

pipGHSA-5xf2-f6ch-6p8rmedium

CodeChecker has a buffer overflow in the log command

Sep 22, 2025

References

github.com / Ericsson/codechecker/security/advisories/GHSA-5xf2-f6ch-6p8r
ExploitVendor Advisory