What is CVE-2025-37789?

CVE-2025-37789 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 3.3 onward and patched in 5.4.293, 5.10.237, 5.15.181 and others. CVE-2025-37789 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-37789?

CVE-2025-37789 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2025-37789?

Yes, CVE-2025-37789 has been patched. Fixed versions include 5.4.293, 5.10.237, 5.15.181 and others. If you are running Linux kernel 3.3 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-37789 actively exploited?

CVE-2025-37789 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-37789

High

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.

Package Linux Kernel

Published 2025-05-01

Last modified 2025-11-06

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Affected versions

Linux kernel versions 3.3 and later are affected. Fixed in 5.4.293, 5.10.237, 5.15.181, 6.1.135, 6.6.88, 6.12.25, 6.14.4, 6.15 and their respective stable series.

Affected from

≥ 3.3

Fixed in

✓ 5.4.293 5.4.x ✓ 5.10.237 5.10.x ✓ 5.15.181 5.15.x ✓ 6.1.135 6.1.x ✓ 6.6.88 6.6.x ✓ 6.12.25 6.12.x ✓ 6.14.4 6.14.x ✓ 6.15

References

The following references provide additional information about CVE-2025-37789 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Debian Security
https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html

Mailing List Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

Mailing List Third Party Advisory
Kernel patch commit
https://git.kernel.org/stable/c/03d7262dd53e8c404da35cc81aaa887fd901f76b
Patch
Kernel patch commit
https://git.kernel.org/stable/c/1489c195c8eecd262aa6712761ba5288203e28ec
Patch
Kernel patch commit
https://git.kernel.org/stable/c/54c6957d1123a2032099b9eab51c314800f677ce
Patch

8 patch commits total View all on NVD

Details

CVE ID CVE-2025-37789

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2025-05-01

Modified 2025-11-06

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-37789?

CVE-2025-37789 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 3.3 onward and has been patched in 5.4.293, 5.10.237, 5.15.181 and others. CVE-2025-37789 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-37789?

CVE-2025-37789 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2025-37789?

Yes — CVE-2025-37789 has been patched. Fixed versions include 5.4.293, 5.10.237, 5.15.181 and others. If you are running Linux kernel 3.3 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-37789 actively exploited?

No — CVE-2025-37789 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.