CVE-2026-52920
Last modified
CVE-2026-52920 is a high-severity vulnerability rated 8.3/10 on the CVSS scale. 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.. EPSS estimates a 0.30% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | >= 2.6.17, < 5.10.258 | — |
| Linux | Linux Kernel | >= 5.11, < 5.15.209 | — |
| Linux | Linux Kernel | >= 5.16, < 6.1.175 | — |
| Linux | Linux Kernel | >= 6.2, < 6.6.141 | — |
| Linux | Linux Kernel | >= 6.7, < 6.12.91 | — |
| Linux | Linux Kernel | >= 6.13, < 6.18.33 | — |
| Linux | Linux Kernel | >= 6.19, < 7.0.10 | — |
| Linux | Linux Kernel | 7.1 | Rc1 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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