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CVE-2026-52920

Last refreshed2026-10-17

Status: UPDATED  |  Advisory ID: CVE-2026-52920

Key Details

CVECVE-2026-52920
CVSS Score / Version
8.3 (High) / CVSS v3.1
Updated2026-10-16
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
CVSS Prose
attack vector is network; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is low; availability impact is high.
Affected products
Linux Kernel

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
LinuxLinux Kernel
SubsystemsOT Supporting Infrastructure
SectorsAll Sectors

What to Know

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

netfilter: xt_policy: fix strict mode inbound policy matching

match_policy_in() walks sec_path entries from the last transform to the

first one, but strict policy matching needs to consume info->pol[] in

the same forward order as the rule layout.

Derive the strict-match policy position from the number of transforms

already consumed so that multi-element inbound rules are matched

consistently. (NVD)

What to Do

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

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-52920
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-52920

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