CVE-2026-72450

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-72450

Key Details

CVE	CVE-2026-72450
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; 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:

xfrm: validate selector family and prefixlen during match

syzbot reported a shift-out-of-bounds in xfrm_selector_match()

due to AF_UNSPEC selector with large prefixlen (e.g. 128) matched

against IPv4 flow (when XFRM_STATE_AF_UNSPEC is set).

Fix this by:

- Rejecting mismatched families in xfrm_selector_match.

- Returning false in addr4_match if prefixlen > 32.

- Returning false in addr_match if prefixlen > 128 (prevents overflow). (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-72450
CVE	https://www.cve.org/CVERecord?id=CVE-2026-72450

Source

Reference

NVD

CVE