CVE-2026-74408

HIGHPre-NVD 8.88.8
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-15. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
44(Track)
EG Risk 44/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
19%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 17, 2026

Advisory Details (8)

Auto-updated Aug 17, 2026
No patch confirmed yet.
generic

wifi: ath9k: fix OOB access from firmware tx status queue ID - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/fb11083db9d7d6fb8f98bbba1cbfcf3fb7b4bf54
generic

wifi: ath9k: fix OOB access from firmware tx status queue ID - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f5931d06b45ed402572bfe5832fff15864ef5481
generic

wifi: ath9k: fix OOB access from firmware tx status queue ID - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a9e055ac62cb3fcea262d4b687ec73eed82b3379
generic

wifi: ath9k: fix OOB access from firmware tx status queue ID - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7ce2f118a2389e8f0a64068c6fe7cc7d40639be0
generic

wifi: ath9k: fix OOB access from firmware tx status queue ID - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/734db72d55ca578a344dfa33e30145032c074b25
generic

wifi: ath9k: fix OOB access from firmware tx status queue ID - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5435fd3edcb11c7cc4002847c83e9a50b49284dc
generic

wifi: ath9k: fix OOB access from firmware tx status queue ID - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/46ca1451f61b598f45cb5259e066d305444d95fc
generic

wifi: ath9k: fix OOB access from firmware tx status queue ID - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/336d4c8cd9b1646060ee690c881d465dfc09c6c0

Vendor Advisories for CVE-2026-74408(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Data Freshness Timeline

(refreshed 29× in last 7d / 29× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 21:25 UTCGHSA enrichment
  3. 2026-08-20 09:00 UTCGHSA enrichment
  4. 2026-08-19 20:35 UTCEG score recompute
  5. 2026-08-19 20:35 UTCGHSA enrichment
  6. 2026-08-19 17:04 UTCEPSS rescore
  7. 2026-08-19 08:10 UTCGHSA enrichment
  8. 2026-08-18 19:45 UTCEG score recompute
  9. 2026-08-18 19:45 UTCGHSA enrichment
  10. 2026-08-18 13:49 UTCEPSS rescore
  11. 2026-08-18 13:49 UTCEPSS rescore
  12. 2026-08-18 07:20 UTCGHSA enrichment
  13. 2026-08-17 18:55 UTCEG score recompute
  14. 2026-08-17 18:55 UTCGHSA enrichment
  15. 2026-08-17 13:47 UTCEPSS rescore
  16. 2026-08-17 06:26 UTCEG score recompute
  17. 2026-08-17 06:25 UTCGHSA enrichment
  18. 2026-08-17 05:55 UTCEG score recompute 8.80
  19. 2026-08-17 05:55 UTCGHSA enrichment
  20. 2026-08-17 05:54 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  21. 2026-08-17 05:26 UTCEG score recompute
  22. 2026-08-17 05:26 UTCGHSA enrichment
  23. 2026-08-17 05:24 UTCMITRE cvelistV5
  24. 2026-08-16 14:56 UTCEPSS rescore
  25. 2026-08-16 14:56 UTCEPSS rescore
Show 4 more
  1. 2026-08-16 02:15 UTCEPSS rescore
  2. 2026-08-15 06:23 UTCNVD update
  3. 2026-08-15 06:13 UTCEG score recompute
  4. 2026-08-15 06:12 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-74408?
CVE-2026-74408 is a high vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: fix OOB access from firmware tx status queue ID athtxedma_tasklet() accesses sc->tx.txq[ts.qid] where ts.qid is a 4-bit hardware field (0-15), but the txq array only has ATH9KNUMTX_QUEUES (10) entries. A qid >= 10…
When was CVE-2026-74408 disclosed?
CVE-2026-74408 was first published in the National Vulnerability Database on August 15, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-74408 actively exploited?
CVE-2026-74408 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 81.4% of all scored CVEs.
What is the CVSS score of CVE-2026-74408?
CVE-2026-74408 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-74408?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-74408, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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