CVE-2026-74408

HighCVSS 8.8

Published: 15/08/2026(UTC)Updated: 17/08/2026(UTC)Translated: 15/08/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.27%

19th percentile - higher than 19% of all known CVEs

Summary

In the Linux kernel, the ath9k driver lacks a bounds check on the qid field from firmware, which can lead to an out-of-bounds array access. An attacker could exploit this to leak kernel memory.

Risk Assessment

Risk of kernel memory disclosure and potential system crash.

Recommendation

Install a kernel patch that adds a bounds check before using qid as an array index.

Original NVD description (English source)

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.