01 Record

CVE-2025-21980

sched: address a potential NULL pointer dereference in the GRED scheduler.

MediumPUBLISHEDCNA: Linux

CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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02 Description

sched: address a potential NULL pointer dereference in the GRED scheduler.

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.19% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 8.7% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2025-04-01 15:47Z1 YR AGO

Last updated

2026-05-11 21:10Z3 MO AGO

Reserved

2024-12-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

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

Weaknesses

CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

cdfe2d173df94250e506850688f44f96af7e3f916a5d499983e7ab82cae3f174

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxf25c0515c521375154c62c72447869f40218c861 to < d02c9acd68950a444acda18d514e2b41f846cb7f, f25c0515c521375154c62c72447869f40218c861 to < 0f0a152957d64ce45b4c27c687e7d087e8f45079, f25c0515c521375154c62c72447869f40218c861 to < 68896dd50180b38ea552e49a6a00b685321e5769, f25c0515c521375154c62c72447869f40218c861 to < 5f996b4f80c2cef1f9c77275055e7fcba44c9199, f25c0515c521375154c62c72447869f40218c861 to < 115ef44a98220fddfab37a39a19370497cd718b9, 5.16—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/d02c9acd68950a444acda18d514e2b41f846cb7f
git.kernel.orghttps://git.kernel.org/stable/c/0f0a152957d64ce45b4c27c687e7d087e8f45079
git.kernel.orghttps://git.kernel.org/stable/c/68896dd50180b38ea552e49a6a00b685321e5769
git.kernel.orghttps://git.kernel.org/stable/c/5f996b4f80c2cef1f9c77275055e7fcba44c9199
git.kernel.orghttps://git.kernel.org/stable/c/115ef44a98220fddfab37a39a19370497cd718b9
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

01 Record index

CVE-2025-21980

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-21980

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References