01 Record

CVE-2022-49904

net, neigh: Fix null-ptr-deref in neigh_table_clear()

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

net, neigh: Fix null-ptr-deref in neigh_table_clear()

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

0.20% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 9.6% 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

2025-05-01 14:10Z1 YR AGO

Last updated

2026-05-23 15:23Z5 MO AGO

Reserved

2025-05-01

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

264388eddcb008d81a16f5bfe024b24018c5af576aa2a314c95c96b80d5c92ec

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux9bbaed571c4bf1b62ac8703cb359dc090efc3455 to < 0d38b4ca6679e72860ff8730e79bb99d0e9fa3b0, 05fdce1ae744dee43c9181fd063c9c0db4f777f2 to < b736592de2aa53aee2d48d6b129bc0c892007bbe, 51be9dd391fd25872b95708a0250f2f7722d2d8e to < b49f6b2f21f543d4dc88fb7b1ec2adccb822f27c, c35adafe42bd6c3bf2aca0a3f523dabc38fc23c8 to < 1c89642e7f2b7ecc9635610653f5c2f0276c0051, db6fa03d80ab076238fc806c9925d1f8b9639d1b to < 2b45d6d0c41cb9593868e476681efb1aae5078a1, 66ba215cb51323e4e55e38fd5f250e0fae0cbc94 to < a99a8ec4c62180c889482a2ff6465033e0743458, 66ba215cb51323e4e55e38fd5f250e0fae0cbc94 to < f8017317cb0b279b8ab98b0f3901a2e0ac880dad, 2dd5ed474115150d8175825bc3b56c6385c3a83b, 4.14.292 to < 4.14.299, 4.19.257 to < 4.19.265, 5.4.212 to < 5.4.224, 5.10.141 to < 5.10.154, 5.15.65 to < 5.15.78, 5.19.7 to < 5.20, 6.0—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/0d38b4ca6679e72860ff8730e79bb99d0e9fa3b0
git.kernel.orghttps://git.kernel.org/stable/c/b736592de2aa53aee2d48d6b129bc0c892007bbe
git.kernel.orghttps://git.kernel.org/stable/c/b49f6b2f21f543d4dc88fb7b1ec2adccb822f27c
git.kernel.orghttps://git.kernel.org/stable/c/1c89642e7f2b7ecc9635610653f5c2f0276c0051
git.kernel.orghttps://git.kernel.org/stable/c/2b45d6d0c41cb9593868e476681efb1aae5078a1
git.kernel.orghttps://git.kernel.org/stable/c/a99a8ec4c62180c889482a2ff6465033e0743458
git.kernel.orghttps://git.kernel.org/stable/c/f8017317cb0b279b8ab98b0f3901a2e0ac880dad

07 Fixed in

Debian 12

linux
Fixed in 6.0.8-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.0.8-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.0.8-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.