01 Record

CVE-2025-40183

bpf: Fix metadata_dst leak __bpf_redirect_neigh_v{4,6}

HighPUBLISHEDCNA: Linux

CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

View raw JSON

02 Description

bpf: Fix metadata_dst leak __bpf_redirect_neigh_v{4,6}

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.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
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

0.62% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 49.6% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-10-19.

Red Hat severity

Low. 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: 2025-11-12 21:56Z11 MO AGO
Last updated: 2026-10-15 22:02Z13 DAYS AGO
Reserved: 2025-04-16
Assigning CNA: Linux
Record state: PUBLISHED
Severity: High (CVSS 7.5)
CNA CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses: No CWE assigned
Data version: 5.2
Document digest: 8dc8c3622082881fea2bd8189e362fd1eaf92ae3d47cf057e31a31fd35fb5ed1

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxb4ab31414970a7a03a5d55d75083f2c101a30592 to < 3fba965a9aac0fa3cbd8138436a37af9ab466d79, b4ab31414970a7a03a5d55d75083f2c101a30592 to < 057764172fcc6ee2ccb6c41351a55a9f054dc8fd, b4ab31414970a7a03a5d55d75083f2c101a30592 to < 2e67c2037382abb56497bb9d7b7e10be04eb5598, b4ab31414970a7a03a5d55d75083f2c101a30592 to < b6bfe44b6dbb14a31d86c475cdc9c7689534fb09, b4ab31414970a7a03a5d55d75083f2c101a30592 to < f36a305d30f557306d87c787ddffe094ac5dac89, b4ab31414970a7a03a5d55d75083f2c101a30592 to < 7404ce888a45eb7da0508b7cbbe6f2e95302eeb8, b4ab31414970a7a03a5d55d75083f2c101a30592 to < 23f3770e1a53e6c7a553135011f547209e141e72, 5.10—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/3fba965a9aac0fa3cbd8138436a37af9ab466d79
git.kernel.orghttps://git.kernel.org/stable/c/057764172fcc6ee2ccb6c41351a55a9f054dc8fd
git.kernel.orghttps://git.kernel.org/stable/c/2e67c2037382abb56497bb9d7b7e10be04eb5598
git.kernel.orghttps://git.kernel.org/stable/c/b6bfe44b6dbb14a31d86c475cdc9c7689534fb09
git.kernel.orghttps://git.kernel.org/stable/c/f36a305d30f557306d87c787ddffe094ac5dac89
git.kernel.orghttps://git.kernel.org/stable/c/7404ce888a45eb7da0508b7cbbe6f2e95302eeb8
git.kernel.orghttps://git.kernel.org/stable/c/23f3770e1a53e6c7a553135011f547209e141e72

07 Fixed in

Debian 12

linux
Fixed in 6.1.158-1

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

Debian 13

linux
Fixed in 6.12.57-1

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

Debian 14

linux
Fixed in 6.17.6-1

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