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CVE-2026-53182

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: reject oversized EMA RNR lists nl80211_parse_rnr_elems() stores the parsed element count in a u8-backed cfg80211…

Published Jun 25, 2026EPSS 0.13%

Overview

CVE-2026-53182 is a high-severity vulnerability. It was published on June 25, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

wifi: nl80211: reject oversized EMA RNR lists

nl80211_parse_rnr_elems() stores the parsed element count in a

u8-backed cfg80211_rnr_elems::cnt field and uses that count to size

the flexible array allocation.

Reject nested NL80211_ATTR_EMA_RNR_ELEMS input once the count reaches

255, before incrementing it again. This keeps the parser aligned with

the data structure it fills and matches the existing bound check used

by nl80211_parse_mbssid_elems().

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/265c07c09c837621730d35f02975207a1224bf05Refgit.kernel.org/stable/c/30c3fa80f423613efdda3deca4af52ff7d20e4e2Refgit.kernel.org/stable/c/4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b1Refgit.kernel.org/stable/c/688fcac7054abc680c0eef753f2bb772cfaf8cf7Refgit.kernel.org/stable/c/ecbf3c45add30a0857414e156bdb9c79906f0ff6Refgit.kernel.org/stable/c/fc0ec2fc02dfe52c5821f36fbccf6a45df43f508

How CyberStrike helps

Frequently asked questions

What is CVE-2026-53182?

CVE-2026-53182 is a high-severity vulnerability. It was published on June 25, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-53182?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-53182?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-53182?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-53182 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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