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CVE-2026-74411

8.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: Correct data type for scan index to avoid infinite loop A kernel soft lockup was observed during Wi-Fi scanning on…

Published Aug 15, 2026EPSS 0.40%

Overview

CVE-2026-74411 is a high-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

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

wifi: rtw89: Correct data type for scan index to avoid infinite loop

A kernel soft lockup was observed during Wi-Fi scanning on the 6GHz band.

The CPU becomes stuck in rtw89_hw_scan_add_chan_ax for over 20 seconds,

leading to a system panic.

RIP points to 0f b6 c3 (movzbl %bl, %eax), which zero-extends

the low 8 bits of RBX into RAX.

RBX (the counter i) has reached a huge value: 0x137466a1.

watchdog: BUG: soft lockup - CPU#2 stuck for 26s! [kworker/u16:4:6124]

Workqueue: events_unbound cfg80211_wiphy_work [cfg80211]

RIP: 0010:rtw89_hw_scan_add_chan_ax+0xb3/0x6e0 [rtw89_core]

Code: a0 48 89 45 a8 44 89 6d 9c 44 89 75 98 eb 29 66 66 2e 0f 1f

84 00 00 00 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 c3 01

<0f> b6 c3 41 3b 44 24 74 0f 83 0b 02 00 00 0f b6 c3 48 8d 14 80 49

RSP: 0018:ffffcb48cbaa39f8 EFLAGS: 00000202

RAX: 0000000000000005 RBX: 00000000137466a1 RCX: 0000000000000000

RDX: ffff89ffc9d85

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/05d46e30303275f21f13c951166d39c85df976d4Refgit.kernel.org/stable/c/08fdcb529df6df3562dd2b0035f88dd5be8b3c68Refgit.kernel.org/stable/c/140fa699cfd0e18ab2f1497acd951fb3548610f5Refgit.kernel.org/stable/c/7a1ab5fdcae896e20ca6d68fa0fbd2816cb7471fRefgit.kernel.org/stable/c/966fbed4b4463fbcb49c5becf3f86eae776861bd

How CyberStrike helps

Frequently asked questions

What is CVE-2026-74411?

CVE-2026-74411 is a high-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-74411?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-74411?

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-2026-74411?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-74411 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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