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CVE-2026-74408

8.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: fix OOB access from firmware tx status queue ID ath_tx_edma_tasklet() accesses sc->tx.txq[ts.qid] where ts.qid is…

Published Aug 15, 2026EPSS 0.41%

Overview

CVE-2026-74408 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: ath9k: fix OOB access from firmware tx status queue ID

ath_tx_edma_tasklet() accesses sc->tx.txq[ts.qid] where ts.qid is a

4-bit hardware field (0-15), but the txq array only has

ATH9K_NUM_TX_QUEUES (10) entries. A qid >= 10 causes an OOB array

access.

Add a bounds check on ts.qid before using it as an array index.

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/336d4c8cd9b1646060ee690c881d465dfc09c6c0Refgit.kernel.org/stable/c/46ca1451f61b598f45cb5259e066d305444d95fcRefgit.kernel.org/stable/c/5435fd3edcb11c7cc4002847c83e9a50b49284dcRefgit.kernel.org/stable/c/734db72d55ca578a344dfa33e30145032c074b25Refgit.kernel.org/stable/c/7ce2f118a2389e8f0a64068c6fe7cc7d40639be0Refgit.kernel.org/stable/c/a9e055ac62cb3fcea262d4b687ec73eed82b3379Refgit.kernel.org/stable/c/f5931d06b45ed402572bfe5832fff15864ef5481Refgit.kernel.org/stable/c/fb11083db9d7d6fb8f98bbba1cbfcf3fb7b4bf54

How CyberStrike helps

Frequently asked questions

What is CVE-2026-74408?

CVE-2026-74408 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-2026-74408?

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-2026-74408?

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-2026-74408?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-74408 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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