High 7.8Published Nov 12, 2025

CVE-2025-40149tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock().

Updated under an hour ago (Oct 27, 2026, 8:23 AM ET)

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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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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock(). get_netdev_for_sock() is called during setsockopt(), so not under RCU. Using sk_dst_get(sk)->dev could trigger UAF. Let's use __sk_dst_get() and dst_dev_rcu(). Note that the only ->ndo_sk_get_lower_dev() user is bond_sk_get_lower_dev(), which uses RCU.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/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: Modified
Record last updated: Oct 15, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from e8f69799810c32dd40c6724d829eccc70baad07f before 2b1bef126bbb8d0da51491357559126d567c1dee; from e8f69799810c32dd40c6724d829eccc70baad07f before e37ca0092ddace60833790b4ad7a390408fb1be9; from e8f69799810c32dd40c6724d829eccc70baad07f before 13159c7125636371543a82cb7bbae00ab36730cc; from e8f69799810c32dd40c6724d829eccc70baad07f before f09cd209359a23f88d4f3fa3d2379d057027e53c; from e8f69799810c32dd40c6724d829eccc70baad07f before feb474ddbf26b51f462ae2e60a12013bdcfc5407; from e8f69799810c32dd40c6724d829eccc70baad07f before c65f27b9c3be2269918e1cbad6d8884741f835c5	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 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
linux linux_kernel linux:linux_kernel	from 4.18 before 5.15.199; from 5.16 before 6.1.161; from 6.2 before 6.6.121; from 6.7 before 6.12.66; from 6.13 before 6.17.3	NVD

References

References

https://git.kernel.org/stable/c/2b1bef126bbb8d0da51491357559126d567c1dee	patch
https://git.kernel.org/stable/c/e37ca0092ddace60833790b4ad7a390408fb1be9	patch
https://git.kernel.org/stable/c/13159c7125636371543a82cb7bbae00ab36730cc	patch
https://git.kernel.org/stable/c/f09cd209359a23f88d4f3fa3d2379d057027e53c	patch
https://git.kernel.org/stable/c/feb474ddbf26b51f462ae2e60a12013bdcfc5407	patch
https://git.kernel.org/stable/c/c65f27b9c3be2269918e1cbad6d8884741f835c5	patch
https://cert-portal.siemens.com/productcert/html/ssa-019113.html
https://cert-portal.siemens.com/productcert/html/ssa-457936.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.