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High 8.1Published Nov 12, 2025
CVE-2025-40135ipv6: use RCU in ip6_xmit()
Updated under an hour ago ()
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It affects Linux and 4 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Deferred
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 before f0a54d00d2f36de40266f47c27989853e8588656; from 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 before f69fec6287565fdeb61f65e700a1184352306943; from 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 before bd0905e2122e3680968cd0741966983490bf2ed3; from 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 before f7f9e924f23684b4b23cd9f976cceab24a968e34; from 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 before 9085e56501d93af9f2d7bd16f7fcfacdde47b99c | CNA record |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | all versions | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
References
- https://git.kernel.org/stable/c/f0a54d00d2f36de40266f47c27989853e8588656
- https://git.kernel.org/stable/c/f69fec6287565fdeb61f65e700a1184352306943
- https://git.kernel.org/stable/c/bd0905e2122e3680968cd0741966983490bf2ed3
- https://git.kernel.org/stable/c/f7f9e924f23684b4b23cd9f976cceab24a968e34
- https://git.kernel.org/stable/c/9085e56501d93af9f2d7bd16f7fcfacdde47b99c
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.