CVE-2025-37789
net: openvswitch: fix nested key length validation in the set() action
Description
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.
INFO
Published Date :
May 1, 2025, 2:15 p.m.
Last Modified :
Nov. 6, 2025, 5:27 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update the Linux kernel to the latest version.
- Apply the provided patch for openvswitch.
- Recompile and install the kernel.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-37789.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-37789 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-37789
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-37789 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-37789 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Nov. 06, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.88 *cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.181 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.237 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.135 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.3 up to (excluding) 5.4.293 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.25 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.14.4 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Added Reference Type kernel.org: https://git.kernel.org/stable/c/03d7262dd53e8c404da35cc81aaa887fd901f76b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/1489c195c8eecd262aa6712761ba5288203e28ec Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/54c6957d1123a2032099b9eab51c314800f677ce Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/65d91192aa66f05710cfddf6a14b5a25ee554dba Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/7fcaec0b2ab8fa5fbf0b45e5512364a168f445bd Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/824a7c2df5127b2402b68a21a265d413e78dcad7 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/a27526e6b48eee9e2d82efff502c4f272f1a91d4 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/be80768d4f3b6fd13f421451cc3fee8778aba8bc Types: Patch Added Reference Type CVE: https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html Types: Mailing List, Third Party Advisory Added Reference Type CVE: https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html Types: Mailing List, Third Party Advisory -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 03, 2025
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html Added Reference https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 02, 2025
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/54c6957d1123a2032099b9eab51c314800f677ce Added Reference https://git.kernel.org/stable/c/7fcaec0b2ab8fa5fbf0b45e5512364a168f445bd Added Reference https://git.kernel.org/stable/c/a27526e6b48eee9e2d82efff502c4f272f1a91d4 -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 01, 2025
Action Type Old Value New Value Added Description 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. Added Reference https://git.kernel.org/stable/c/03d7262dd53e8c404da35cc81aaa887fd901f76b Added Reference https://git.kernel.org/stable/c/1489c195c8eecd262aa6712761ba5288203e28ec Added Reference https://git.kernel.org/stable/c/65d91192aa66f05710cfddf6a14b5a25ee554dba Added Reference https://git.kernel.org/stable/c/824a7c2df5127b2402b68a21a265d413e78dcad7 Added Reference https://git.kernel.org/stable/c/be80768d4f3b6fd13f421451cc3fee8778aba8bc