SECUFOCUSNOW
Home›CVE index›CVE-2025-37789
Review reviewHigh

CVE-2025-37789

Linux Linux, linux kernel, debian linux

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix nested key length validation in the set() action It's not safe to access nla_len(ovs_key) if the data is smaller than the netlink header. Check that the attribute is OK first.

CVSS
7.8
EPSS
0.20%
10.5% percentile
CISA KEV
Not listed
Published
2025.05.01
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.20%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix nested key length validation in the set() action It's not safe to access nla_len(ovs_key) if the data is smaller than the netlink header. Check that the attribute is OK first.

Affected product and versions

Product
Linux Linux, linux kernel, debian linux
Affected versions
>= ccb1352e76cff0524e7ccb2074826a092dd13016 < 54c6957d1123a2032099b9eab51c314800f677ce, >= ccb1352e76cff0524e7ccb2074826a092dd13016 < 7fcaec0b2ab8fa5fbf0b45e5512364a168f445bd, >= ccb1352e76cff0524e7ccb2074826a092dd13016 < a27526e6b48eee9e2d82efff502c4f272f1a91d4, >= ccb1352e76cff0524e7ccb2074826a092dd13016 < 1489c195c8eecd262aa6712761ba5288203e28ec, >= ccb1352e76cff0524e7ccb2074826a092dd13016 < 824a7c2df5127b2402b68a21a265d413e78dcad7, >= ccb1352e76cff0524e7ccb2074826a092dd13016 < be80768d4f3b6fd13f421451cc3fee8778aba8bc, >= ccb1352e76cff0524e7ccb2074826a092dd13016 < 03d7262dd53e8c404da35cc81aaa887fd901f76b, >= ccb1352e76cff0524e7ccb2074826a092dd13016 < 65d91192aa66f05710cfddf6a14b5a25ee554dba, >= 3.3, >= 3.3 < 5.4.293, >= 5.5 < 5.10.237, >= 5.11 < 5.15.181, >= 5.16 < 6.1.135, >= 6.2 < 6.6.88, >= 6.7 < 6.12.25, >= 6.13 < 6.14.4, 6.15, 11.0
Fixed versions
5.4.293, 5.10.237, 5.15.181, 6.1.135, 6.6.88, 6.12.25, 6.14.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel, debian linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Not available
CVE-2025-37789 — Linux Linux, linux kernel, debian linux | SECUFOCUS NOW