What is CVE-2025-38120?

CVE-2025-38120 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.15.165 onward and patched in 5.15.186, 6.1.142, 6.6.94 and others. CVE-2025-38120 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-38120?

CVE-2025-38120 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2025-38120?

Yes, CVE-2025-38120 has been patched. Fixed versions include 5.15.186, 6.1.142, 6.6.94 and others. If you are running Linux kernel 5.15.165 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-38120 actively exploited?

CVE-2025-38120 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-38120

Medium

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_set_pipapo_avx2: fix initial map fill If the first field doesn't cover the entire start map, then we must zero out the remainder, else we leak those bits into the next match round map. The early fix was incomplete and did only fix up the generic C implementation. A followup patch adds a test case to nft_concat_range.sh.

Package Linux Kernel

Published 2025-07-03

Last modified 2025-12-17

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Affected versions

Linux kernel versions 5.15.165, 6.1.103, 6.6.44, 6.10.3, 6.11 and later are affected. Fixed in 5.15.186, 6.1.142, 6.6.94, 6.12.34, 6.15.3, 6.16 and their respective stable series.

Affected from

≥ 5.15.165 ≥ 6.1.103 ≥ 6.6.44 ≥ 6.10.3 ≥ 6.11

Fixed in

✓ 5.15.186 5.15.x ✓ 6.1.142 6.1.x ✓ 6.6.94 6.6.x ✓ 6.12.34 6.12.x ✓ 6.15.3 6.15.x ✓ 6.16

References

The following references provide additional information about CVE-2025-38120 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/2025/10/msg00008.html

Third Party Advisory
Kernel patch commit
https://git.kernel.org/stable/c/251496ce1728c9fd47bd2b20a7b21b20b9a020ca
Patch
Kernel patch commit
https://git.kernel.org/stable/c/39bab2d3517b5b50c609b4f8c66129bf619fffa0
Patch
Kernel patch commit
https://git.kernel.org/stable/c/8068e1e42b46518ce680dc6470bcd710efc3fa0a
Patch

7 patch commits total View all on NVD

Details

CVE ID CVE-2025-38120

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-07-03

Modified 2025-12-17

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-38120?

CVE-2025-38120 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.15.165 onward and has been patched in 5.15.186, 6.1.142, 6.6.94 and others. CVE-2025-38120 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-38120?

CVE-2025-38120 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2025-38120?

Yes — CVE-2025-38120 has been patched. Fixed versions include 5.15.186, 6.1.142, 6.6.94 and others. If you are running Linux kernel 5.15.165 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-38120 actively exploited?

No — CVE-2025-38120 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.