CVE-2026-74474

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-74474

Key Details

CVE	CVE-2026-74474
CVSS Score / Version	9.8 (Critical) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

vxlan: use pskb_network_may_pull() for transmit path header pulls

In vxlan_xmit(), arp_reduce(), and vxlan_mdb_entry_skb_get(), pskb_may_pull() was

being called to verify the availability of network layer headers (ARP, IPv6/ND,

IP/IPv6 MDB keys).

However, during transmit skb->data points to the MAC header, so skb_network_offset(skb)

is ETH_HLEN (14 bytes). Using pskb_may_pull(skb, len) only checks len bytes from skb->data

rather than skb_network_offset(skb) + len, which can leave part of the network header

in non-linear frags.

Replace these remaining pskb_may_pull() calls with pskb_network_may_pull() to properly

account for the MAC header offset. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-74474
CVE	https://www.cve.org/CVERecord?id=CVE-2026-74474

Source

Reference

NVD

CVE