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CVE-2025-40074ipv4: start using dst_dev_rcu()
- 9.8CriticalCVSS base score
- 0.46%Exploitation in 30 daysEPSS · top 60% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: ipv4: start using dst_dev_rcu() Change icmpv4_xrlim_allow(), ip_defrag() to prevent possible UAF. Change ipmr_prepare_xmit(), ipmr_queue_fwd_xmit(), ip_mr_output(), ipv4_neigh_lookup() to use lockdep enabled dst_dev_rcu().
Timeline
ID reserved
By Linux
- 7 months later
· 7 months later
Published
- 11 months later
· 11 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.46% · top 60% of all CVEs (13 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
- affected 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – < 864155c164654110f68a17a63bd0339754790d67
- affected 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – < e150f273cd8ed34ebc6d03758aad95c12fc58337
- affected 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – < 684efb2c86c887685f9aa65e1a21b3df6c1f822d
- affected 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – < 923e0734c386984d45de508528a7a7ad91d791cc
- affected 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – < 6ad8de3cefdb6ffa6708b21c567df0dbf82c43a8
- affected 4.13
- unaffected < 4.13
- unaffected 6.1.189 – ≤ 6.1.*
- unaffected 6.6.157 – ≤ 6.6.*
- unaffected 6.12.106 – ≤ 6.12.*
- unaffected 6.17.3 – ≤ 6.17.*
- unaffected 6.18 – ≤ *
References
References5
- https://git.kernel.org/stable/c/864155c164654110f68a17a63bd0339754790d67 (opens in a new tab)
- https://git.kernel.org/stable/c/e150f273cd8ed34ebc6d03758aad95c12fc58337 (opens in a new tab)
- https://git.kernel.org/stable/c/684efb2c86c887685f9aa65e1a21b3df6c1f822d (opens in a new tab)
- https://git.kernel.org/stable/c/923e0734c386984d45de508528a7a7ad91d791cc (opens in a new tab)
- https://git.kernel.org/stable/c/6ad8de3cefdb6ffa6708b21c567df0dbf82c43a8 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-36454 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-40074)Record last updated .