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CVE-2025-40135ipv6: use RCU in ip6_xmit()
- 8.1HighCVSS base score
- 0.71%Exploitation in 30 daysEPSS · top 46% 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: ipv6: use RCU in ip6_xmit() Use RCU in ip6_xmit() in order to use dst_dev_rcu() to prevent possible UAF.
Timeline
ID reserved
By Linux
- 7 months later
· 7 months later
Published
- 12 months later
· 12 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 | High8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.71% · top 46% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.1.
Affected products
- affected 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – < 7a228cfbb66cca49e9baf901c506364f8dfe036b
- affected 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – < f0a54d00d2f36de40266f47c27989853e8588656
- affected 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – < f69fec6287565fdeb61f65e700a1184352306943
- affected 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – < bd0905e2122e3680968cd0741966983490bf2ed3
- affected 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – < f7f9e924f23684b4b23cd9f976cceab24a968e34
- affected 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – < 9085e56501d93af9f2d7bd16f7fcfacdde47b99c
- affected 4.13
- unaffected < 4.13
- unaffected 5.15.224 – ≤ 5.15.*
- unaffected 6.1.167 – ≤ 6.1.*
- unaffected 6.6.130 – ≤ 6.6.*
- unaffected 6.12.78 – ≤ 6.12.*
- unaffected 6.17.3 – ≤ 6.17.*
- unaffected 6.18 – ≤ *
References
References10
- https://git.kernel.org/stable/c/7a228cfbb66cca49e9baf901c506364f8dfe036b (opens in a new tab)
- https://git.kernel.org/stable/c/f0a54d00d2f36de40266f47c27989853e8588656 (opens in a new tab)
- https://git.kernel.org/stable/c/f69fec6287565fdeb61f65e700a1184352306943 (opens in a new tab)
- https://git.kernel.org/stable/c/bd0905e2122e3680968cd0741966983490bf2ed3 (opens in a new tab)
- https://git.kernel.org/stable/c/f7f9e924f23684b4b23cd9f976cceab24a968e34 (opens in a new tab)
- https://git.kernel.org/stable/c/9085e56501d93af9f2d7bd16f7fcfacdde47b99c (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html (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-2025-124948 (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-2025-40135)Record last updated .