CVE-2026-58106: CWE-787 Out-of-bounds write in Ericsson CodeChecker
Description
CVE-2026-58106 is an out-of-bounds write vulnerability (CWE-787) in Ericsson CodeChecker through version 6.28.2. It occurs due to a stack overflow caused by the misuse of a bounded string copy function that writes 4096 bytes into a 4094-byte buffer, resulting in a 2-byte overflow on every invocation regardless of input length. The vulnerability has a low CVSS score of 2. No patch or official remediation has been confirmed yet.
CVSS v4.0
Score 2.0low
Affected software
Ericsson
CodeChecker
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises in Ericsson CodeChecker through version 6.28.2 where a fixed issue (CVE-2025-40843) replaced an unchecked strcpy() with a bounded safe_strcpy() helper implemented as strncpy(). However, the destination pointer is offset by 2 bytes (fullPath + 2), but the size parameter passed remains PATH_MAX (4096 bytes). Since strncpy() pads the destination buffer to the full size, it writes 4096 bytes into a buffer that only has 4094 bytes available, causing a 2-byte stack overflow on every call independent of the input path length.
Potential Impact
The vulnerability causes a 2-byte stack overflow on every invocation of the affected code path. The CVSS score of 2 indicates low severity, suggesting limited impact such as potential memory corruption without immediate privilege escalation or denial of service. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround has been documented at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ERIC
- Date Reserved
- 2026-06-29T10:41:35.472Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a91ab5bacd9273b490abfa8
Added to database: 08/28/2026, 15:38:03 UTC
Last enriched: 09/09/2026, 23:07:50 UTC
Last updated: 10/13/2026, 18:48:21 UTC
Views: 135
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