High 7.8Published May 1, 2024

CVE-2024-26950wireguard: netlink: access device through ctx instead of peer

Updated under an hour ago (Oct 27, 2026, 9:23 AM ET)

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It affects Linux and 3 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: wireguard: netlink: access device through ctx instead of peer The previous commit fixed a bug that led to a NULL peer->device being dereferenced. It's actually easier and faster performance-wise to instead get the device from ctx->wg. This semantically makes more sense too, since ctx->wg->peer_allowedips.seq is compared with ctx->allowedips_seq, basing them both in ctx. This also acts as a defence in depth provision against freed peers.

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 14, 2026
First seen by InfoSec Signals: Oct 14, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from e7096c131e5161fa3b8e52a650d7719d2857adfd before 493aa6bdcffd90a4f82aa614fe4f4db0641b4068; from e7096c131e5161fa3b8e52a650d7719d2857adfd before 4be453271a882c8ebc28df3dbf9e4d95e6ac42f5; from e7096c131e5161fa3b8e52a650d7719d2857adfd before 09c3fa70f65175861ca948cb2f0f791e666c90e5; from e7096c131e5161fa3b8e52a650d7719d2857adfd before c991567e6c638079304cc15dff28748e4a3c4a37; from e7096c131e5161fa3b8e52a650d7719d2857adfd before 93bcc1752c69bb309f4d8cfaf960ef1faeb34996; from e7096c131e5161fa3b8e52a650d7719d2857adfd before d44bd323d8bb8031eef4bdc44547925998a11e47; from e7096c131e5161fa3b8e52a650d7719d2857adfd before 71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f	CNA record
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name)	before V1.1.1	CISA ADP
linux linux_kernel linux:linux_kernel	from 5.6 before 5.10.215; from 5.11 before 5.15.154; from 5.16 before 6.1.84; from 6.2 before 6.6.24; from 6.7 before 6.7.12; from 6.8 before 6.8.3	NVD
debian debian_linux debian:debian_linux	10.0	NVD

References

References

https://git.kernel.org/stable/c/493aa6bdcffd90a4f82aa614fe4f4db0641b4068	patch
https://git.kernel.org/stable/c/4be453271a882c8ebc28df3dbf9e4d95e6ac42f5	patch
https://git.kernel.org/stable/c/09c3fa70f65175861ca948cb2f0f791e666c90e5	patch
https://git.kernel.org/stable/c/c991567e6c638079304cc15dff28748e4a3c4a37	patch
https://git.kernel.org/stable/c/93bcc1752c69bb309f4d8cfaf960ef1faeb34996	patch
https://git.kernel.org/stable/c/d44bd323d8bb8031eef4bdc44547925998a11e47	patch
https://git.kernel.org/stable/c/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f	patch
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html	mailing-list, third-party-advisory
https://cert-portal.siemens.com/productcert/html/ssa-265688.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.