What is CVE-2025-21780?

CVE-2025-21780 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 5.2 onward and patched in 6.1.129, 6.6.79, 6.12.16 and others. CVE-2025-21780 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-21780?

CVE-2025-21780 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-2025-21780?

Yes, CVE-2025-21780 has been patched. Fixed versions include 6.1.129, 6.6.79, 6.12.16 and others. If you are running Linux kernel 5.2 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-21780 actively exploited?

CVE-2025-21780 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-21780

High

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table() It malicious user provides a small pptable through sysfs and then a bigger pptable, it may cause buffer overflow attack in function smu_sys_set_pp_table().

Package Linux Kernel

Published 2025-02-27

Last modified 2025-11-03

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

Weakness type

CWE-120

CVE-2025-21780 is classified as CWE-120

See CWE-120 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 5.2 and later are affected. Fixed in 6.1.129, 6.6.79, 6.12.16, 6.13.4, 6.14 and their respective stable series.

Affected from

≥ 5.2

Fixed in

✓ 6.1.129 6.1.x ✓ 6.6.79 6.6.x ✓ 6.12.16 6.12.x ✓ 6.13.4 6.13.x ✓ 6.14

References

The following references provide additional information about CVE-2025-21780 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/2025/03/msg00028.html
Kernel patch commit
https://git.kernel.org/stable/c/1abb2648698bf10783d2236a6b4a7ca5e8021699
Patch
Kernel patch commit
https://git.kernel.org/stable/c/231075c5a8ea54f34b7c4794687baa980814e6de
Patch
Kernel patch commit
https://git.kernel.org/stable/c/2498d2db1d35e88a2060ea191ae75dce853dd084
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2025-21780

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2025-02-27

Modified 2025-11-03

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-21780?

CVE-2025-21780 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 5.2 onward and has been patched in 6.1.129, 6.6.79, 6.12.16 and others. CVE-2025-21780 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-21780?

CVE-2025-21780 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-2025-21780?

Yes — CVE-2025-21780 has been patched. Fixed versions include 6.1.129, 6.6.79, 6.12.16 and others. If you are running Linux kernel 5.2 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-21780 actively exploited?

No — CVE-2025-21780 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.