CVE-2026-52920

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

24/06/2026

Last modified:

08/07/2026

Description

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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.30 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): Low
Availability (A): High

Base Score 3.x

8.30

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	2.6.17 (including)	5.10.258 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.209 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.175 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.141 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.12.91 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.13 (including)	6.18.33 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.19 (including)	7.0.10 (excluding)
cpe:2.3:o:linux:linux_kernel:7.1:rc1::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2026-52920

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools