CVE-2026-74408

HIGHCVSS 8.8/10EPSS 0.18%

Last modified

CVE-2026-74408 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
8.8/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.18%

7.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= fce041beb03f93c7a771f0b4b6c45bb71ef90901, < fb11083db9d7d6fb8f98bbba1cbfcf3fb7b4bf54; >= fce041beb03f93c7a771f0b4b6c45bb71ef90901, < 734db72d55ca578a344dfa33e30145032c074b25; >= fce041beb03f93c7a771f0b4b6c45bb71ef90901, < f5931d06b45ed402572bfe5832fff15864ef5481; >= fce041beb03f93c7a771f0b4b6c45bb71ef90901, < 46ca1451f61b598f45cb5259e066d305444d95fc; >= fce041beb03f93c7a771f0b4b6c45bb71ef90901, < a9e055ac62cb3fcea262d4b687ec73eed82b3379; >= fce041beb03f93c7a771f0b4b6c45bb71ef90901, < 5435fd3edcb11c7cc4002847c83e9a50b49284dc; >= fce041beb03f93c7a771f0b4b6c45bb71ef90901, < 336d4c8cd9b1646060ee690c881d465dfc09c6c0; >= fce041beb03f93c7a771f0b4b6c45bb71ef90901, < 7ce2f118a2389e8f0a64068c6fe7cc7d40639be0
LinuxLinux3.1

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-74408?
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.
How severe is CVE-2026-74408?
CVE-2026-74408 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.
How do I fix CVE-2026-74408?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST