SECUFOCUSNOW
Home›CVE index›CVE-2025-40214
Review reviewHigh

CVE-2025-40214

Linux Linux, RUGGEDCOM RST2428P

In the Linux kernel, the following vulnerability has been resolved: af_unix: Initialise scc_index in unix_add_edge(). Quang Le reported that the AF_UNIX GC could garbage-collect a receive queue of an alive in-flight socket, with a nice repro. The repro consists of three stages. 1) 1-a. Create a single cyclic reference with many sockets 1-b. close() all sockets 1-c. Trigger GC 2) 2-a. Pass sk-A to an embryo sk-B 2-b. Pass sk-X to sk-X 2-c. Trigger GC 3) 3-a. accept() the embryo sk-B 3-b. Pass sk-B to sk-C 3-c. close() the in-flight sk-A 3-d. Trigger GC As of 2-c, sk-A and sk-X are linked to...

CVSS
7.8
EPSS
0.14%
4.14% percentile
CISA KEV
Not listed
Published
2025.12.04
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.14%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: af_unix: Initialise scc_index in unix_add_edge(). Quang Le reported that the AF_UNIX GC could garbage-collect a receive queue of an alive in-flight socket, with a nice repro. The repro consists of three stages. 1) 1-a. Create a single cyclic reference with many sockets 1-b. close() all sockets 1-c. Trigger GC 2) 2-a. Pass sk-A to an embryo sk-B 2-b. Pass sk-X to sk-X 2-c. Trigger GC 3) 3-a. accept() the embryo sk-B 3-b. Pass sk-B to sk-C 3-c. close() the in-flight sk-A 3-d. Trigger GC As of 2-c, sk-A and sk-X are linked to...

Affected product and versions

Product
Linux Linux, RUGGEDCOM RST2428P
Affected versions
>= adfb68b39b39767d6bfb53e48c4f19c183765686 < 20003fbb9174121b27bd1da6ebe61542ac4c327d, >= d23802221f6755e104606864067c71af8cdb6788 < 4cd8d755c7d4f515dd9abf483316aca2f1b7b0f3, >= ad081928a8b0f57f269df999a28087fce6f2b6ce < db81ad20fd8aef7cc7d536c52ee5ea4c1f979128, >= ad081928a8b0f57f269df999a28087fce6f2b6ce < 1aa7e40ee850c9053e769957ce6541173891204d, >= ad081928a8b0f57f269df999a28087fce6f2b6ce < 60e6489f8e3b086bd1130ad4450a2c112e863791, >= 6.1.141 < 6.1.159, >= 6.6.93 < 6.6.117, >= 6.10, < V4.0
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, RUGGEDCOM RST2428P and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Not available
CVE-2025-40214 — Linux Linux, RUGGEDCOM RST2428P | SECUFOCUS NOW