01 Record

CVE-2025-21812

ax25: rcu protect dev->ax25_ptr

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

ax25: rcu protect dev->ax25_ptr

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

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 13.3% 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

9d0888a47d8dcbe71078143142eccadc39ff1da4732065be93ce9cdbaec5aeb1

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxc433570458e49bccea5c551df628d058b3526289 to < 2802ed4ced27ebd474828fc67ffd7d66f11e3605, c433570458e49bccea5c551df628d058b3526289 to < 7705d8a7f2c26c80973c81093db07c6022b2b30e, c433570458e49bccea5c551df628d058b3526289 to < 8937f5e38a218531dce2a89fae60e3adcc2311e1, c433570458e49bccea5c551df628d058b3526289 to < c2531db6de3c95551be58878f859c6a053b7eb2e, c433570458e49bccea5c551df628d058b3526289 to < 95fc45d1dea8e1253f8ec58abc5befb71553d666, 7f93d703e276311dd289c9a520ce9e8c8fa2858c, c0e93a6d36135d5082cb3af8352f5b69c9f58d6e, c39b8fd4997bf99503b8e48d8cb0eedb1d9a54f0, 26a5adc8eb26d170058645c3cccd4d19165bec16, 3e881d8764ed9b04ae3e5c3e5d132acb75ef91ba, 77768c96dcf860c43b970b87b2a09229f84ea560, 3.18.132 to < 3.19, 4.4.170 to < 4.5, 4.9.149 to < 4.10, 4.14.92 to < 4.15, 4.19.14 to < 4.20, 4.20.1 to < 4.21, 5.0—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/2802ed4ced27ebd474828fc67ffd7d66f11e3605
git.kernel.orghttps://git.kernel.org/stable/c/7705d8a7f2c26c80973c81093db07c6022b2b30e
git.kernel.orghttps://git.kernel.org/stable/c/8937f5e38a218531dce2a89fae60e3adcc2311e1
git.kernel.orghttps://git.kernel.org/stable/c/c2531db6de3c95551be58878f859c6a053b7eb2e
git.kernel.orghttps://git.kernel.org/stable/c/95fc45d1dea8e1253f8ec58abc5befb71553d666
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00028.html

01 Record index

CVE-2025-21812

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-21812

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References