CVE-2026-43125

Advisory lineage Upstream: 0 Downstream: 14
Analyzed
Published: 06 May 2026, 11:27
Last modified:20 Jul 2026, 12:05

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
v3.1 (cve.org)
EPSS Score
0.43% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

06 May 2026, 11:27
Published
Vulnerability first disclosed
20 Jul 2026, 12:05
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: dlm: validate length in dlm_search_rsb_tree The len parameter in dlm_dump_rsb_name() is not validated and comes from network messages. When it exceeds DLM_RESNAME_MAXLEN, it can cause out-of-bounds write in dlm_search_rsb_tree(). Add length validation to prevent potential buffer overflow.

CVSS Metrics

  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.43%• Percentile: 34%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

  • CWE-130•Improper Handling of Length Parameter Inconsistency

    The product parses a formatted message or structure, but it does not handle or incorrectly handles a length field that is inconsistent with the actual length of the associated data.

Affected Systems

  • linux•linux

    ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 67288113c5e6cf9e659b4065c0ed6f16100e0c71 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 082083c9fbd99422a0370fe2102144a231c9f5d6 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 5f053a2e7209d326cbbc07738fa6d6893d307438 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 080e5563f878c64e697b89e7439d730d0daad882 | ≥ 7210cb7a72a22303cdb225bd1aea28697a17bbae, < 67288113c5e6cf9e659b4065c0ed6f16100e0c71 | ≥ 7210cb7a72a22303cdb225bd1aea28697a17bbae, < 082083c9fbd99422a0370fe2102144a231c9f5d6 | ≥ 7210cb7a72a22303cdb225bd1aea28697a17bbae, < 5f053a2e7209d326cbbc07738fa6d6893d307438 | ≥ 7210cb7a72a22303cdb225bd1aea28697a17bbae, < 080e5563f878c64e697b89e7439d730d0daad882 | 3.4

  • linux•linux kernel

    ≥ 3.4, < 6.12.75 | ≥ 6.13, < 6.18.16 | ≥ 6.19, < 6.19.6

References (18)