01 Record

CVE-2025-21811

nilfs2: protect access to buffers with no active references

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

nilfs2: protect access to buffers with no active references

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 ImpacttotalSuccessful exploitation gives total 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

0.25% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 16.2% of scored records. A rank, not a probability.

NVD base score

7.8 (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:H/I:H/A:H

NVD analysis status

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

Red Hat severity

Important. 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

2025-02-27 20:01Z1 YR AGO

Last updated

2026-08-05 11:54Z1 MO AGO

Reserved

2024-12-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

CWE-416Use After FreeVariant

Data version

5.2

Document digest

d1f10a86a738b4a2f644a6c2359f64c9b22979b2ac221527de2104e28e2d1788

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux8c26c4e2694a163d525976e804d81cd955bbb40c to < e1fc4a90a90ea8514246c45435662531975937d9, 8c26c4e2694a163d525976e804d81cd955bbb40c to < 72cf688d0ce7e642b12ddc9b2a42524737ec1b4a, 8c26c4e2694a163d525976e804d81cd955bbb40c to < d8ff250e085a4c4cdda4ad1cdd234ed110393143, 8c26c4e2694a163d525976e804d81cd955bbb40c to < 58c27fa7a610b6e8d44e6220e7dbddfbaccaf439, 8c26c4e2694a163d525976e804d81cd955bbb40c to < 8e1b9201c9a24638cf09c6e1c9f224157328010b, 8c26c4e2694a163d525976e804d81cd955bbb40c to < 4b08d23d7d1917bef4fbee8ad81372f49b006656, 8c26c4e2694a163d525976e804d81cd955bbb40c to < c437dfac9f7a5a46ac2a5e6d6acd3059e9f68188, 8c26c4e2694a163d525976e804d81cd955bbb40c to < 367a9bffabe08c04f6d725032cce3d891b2b9e1a, 3.10—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/e1fc4a90a90ea8514246c45435662531975937d9
git.kernel.orghttps://git.kernel.org/stable/c/72cf688d0ce7e642b12ddc9b2a42524737ec1b4a
git.kernel.orghttps://git.kernel.org/stable/c/d8ff250e085a4c4cdda4ad1cdd234ed110393143
git.kernel.orghttps://git.kernel.org/stable/c/58c27fa7a610b6e8d44e6220e7dbddfbaccaf439
git.kernel.orghttps://git.kernel.org/stable/c/8e1b9201c9a24638cf09c6e1c9f224157328010b
git.kernel.orghttps://git.kernel.org/stable/c/4b08d23d7d1917bef4fbee8ad81372f49b006656
git.kernel.orghttps://git.kernel.org/stable/c/c437dfac9f7a5a46ac2a5e6d6acd3059e9f68188
git.kernel.orghttps://git.kernel.org/stable/c/367a9bffabe08c04f6d725032cce3d891b2b9e1a
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00028.html

01 Record index

CVE-2025-21811

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-21811

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References