Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2026-72350

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_u32: reject invalid shift counts u32_match_it() executes rule-supplied shift operands on a 32-bit value.

Published Aug 15, 2026EPSS 0.18%

Overview

CVE-2026-72350 is a high-severity vulnerability. It was published on August 15, 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:

netfilter: xt_u32: reject invalid shift counts

u32_match_it() executes rule-supplied shift operands on a 32-bit

value. A malformed u32 rule can provide a shift count of 32 or more,

triggering an undefined shift out-of-bounds during packet evaluation.

Validate XT_U32_LEFTSH and XT_U32_RIGHTSH operands in

u32_mt_checkentry() and reject malformed rules before they reach the

packet path.

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/00d034fe8230dfc5832fe011ff2d81c1a2cc7a29Refgit.kernel.org/stable/c/0a8b7a6d763775709c601f584e709ae48bcc000aRefgit.kernel.org/stable/c/64cdf7d30ac18e43df6c48004435febb965809a8Refgit.kernel.org/stable/c/728f479dc0447ae7eaef87926ff49142e415a811Refgit.kernel.org/stable/c/a597a722fb71a534138c20359b655726622b5f17Refgit.kernel.org/stable/c/b33b44250d57ab0e5a1e2571b5285fb0d0a7f382Refgit.kernel.org/stable/c/ca7c92d9701249e6daf132087756a88cbf2bb2a3Refgit.kernel.org/stable/c/cce42014415cecd98aa49b3950e7b02ee7c81268

How CyberStrike helps

Frequently asked questions

What is CVE-2026-72350?

CVE-2026-72350 is a high-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-72350?

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-2026-72350?

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-2026-72350?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-72350 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.

Related HIGH CVEs from 2026

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999