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CVE-2026-74720

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve pointer state for commuted arithmetic When scalar += pointer is handled in adjust_ptr_min_max_vals(), the destina…

Published Aug 22, 2026EPSS 0.13%

Overview

CVE-2026-74720 is a high-severity vulnerability. It was published on August 22, 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:

bpf: Preserve pointer state for commuted arithmetic

When scalar += pointer is handled in adjust_ptr_min_max_vals(), the

destination register inherits the pointer state from the source pointer.

Copying only selected fields is fragile because pointer provenance is

tracked by several bpf_reg_state fields.

Use the caller's temporary offset register to preserve the scalar operand

while replacing the destination with the full pointer state. This preserves

the frame number for PTR_TO_STACK registers and keeps parent identity

fields consistent.

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/29c239f8dbec5ab33a61796724d189bddee6cd4bRefgit.kernel.org/stable/c/8109c25e0c41f5f19a1c2380bb49c991a877494eRefgit.kernel.org/stable/c/86b203aadc2930e0a4f9c6277b5b80ff3664c472Refgit.kernel.org/stable/c/8cb23101a3fcc7432b451ea3d0f14a90711f4acfRefgit.kernel.org/stable/c/a4c6f804b44c5c790269b25e0e61cf4e9f117c86Refgit.kernel.org/stable/c/d1959028190a7649b926f5867a58de5fe221b23cRefgit.kernel.org/stable/c/db6382ed3361bdd8129572a3423956cba1dae829Refgit.kernel.org/stable/c/eaffa1495e4fe6330aeff9f323ea3d48b01f118a

How CyberStrike helps

Frequently asked questions

What is CVE-2026-74720?

CVE-2026-74720 is a high-severity vulnerability. It was published on August 22, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-74720?

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-2026-74720?

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-2026-74720?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-74720 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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