CVE-2026-74410

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-15. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: 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: rtw88: fix OOB read from firmware RX descriptor exceeding DMA buffer

In rtw_pci_rx_napi(), new_len is computed as the sum of pkt_len (14-bit descriptor field, max 16383) and pkt_offset (drv_info_sz + shift, both firmware-controlled). The result can exceed RTK_PCI_RX_BUF_SIZE (11478), causing an out-of-bounds read from the pre-allocated DMA buffer when skb_put_data copies new_len bytes. The USB transport already validates this (rtw_usb_rx_data_put checks against RTW_USB_MAX_RECVBUF_SZ); the PCIe path does not.

Add a check that new_len does not exceed the DMA buffer size.

CVSS v3
8.1
EG Score
8.1(high)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
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: rtw88: fix OOB read from firmware RX descriptor exceeding DMA buffer - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/913bd7d3d3d842b5c1d2b908a0201efa8fc79793
generic

wifi: rtw88: fix OOB read from firmware RX descriptor exceeding DMA buffer - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6e76e9ed273dfb4b3333a5ebbb94958cc5752ab6
generic

wifi: rtw88: fix OOB read from firmware RX descriptor exceeding DMA buffer - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6a3c384393d3f0b41669ed5a2e88744aad9d87c8
generic

wifi: rtw88: fix OOB read from firmware RX descriptor exceeding DMA buffer - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/45abc14ab3f15da7d689f1a8809c1a01240a94d9
generic

wifi: rtw88: fix OOB read from firmware RX descriptor exceeding DMA buffer - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/26c183a86ea4dd1f2ff90c6f783649e7f5722a10
generic

wifi: rtw88: fix OOB read from firmware RX descriptor exceeding DMA buffer - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1554fa522f16ec7c5c342ad33fe734eeb6eb2452
generic

wifi: rtw88: fix OOB read from firmware RX descriptor exceeding DMA buffer - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/08193e733e5d4790e6c937af86d78793b02709be
generic

wifi: rtw88: fix OOB read from firmware RX descriptor exceeding DMA buffer - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/01155ded5d4dad61840a9a3c33ab56778ef1f100

Vendor Advisories for CVE-2026-74410(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 31× in last 7d / 31× 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. 2026-08-21 05:03 UTCEG score recompute
  2. 2026-08-21 05:03 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 17:29 UTCGHSA enrichment
  5. 2026-08-20 05:56 UTCGHSA enrichment
  6. 2026-08-19 18:22 UTCEG score recompute
  7. 2026-08-19 18:22 UTCGHSA enrichment
  8. 2026-08-19 17:04 UTCEPSS rescore
  9. 2026-08-19 05:40 UTCGHSA enrichment
  10. 2026-08-18 18:06 UTCEG score recompute
  11. 2026-08-18 18:05 UTCGHSA enrichment
  12. 2026-08-18 13:49 UTCEPSS rescore
  13. 2026-08-18 13:49 UTCEPSS rescore
  14. 2026-08-18 06:29 UTCGHSA enrichment
  15. 2026-08-17 18:55 UTCEG score recompute
  16. 2026-08-17 18:55 UTCGHSA enrichment
  17. 2026-08-17 13:47 UTCEPSS rescore
  18. 2026-08-17 06:25 UTCEG score recompute
  19. 2026-08-17 06:25 UTCGHSA enrichment
  20. 2026-08-17 05:55 UTCEG score recompute▲ 8.10
  21. 2026-08-17 05:55 UTCGHSA enrichment
  22. 2026-08-17 05:54 UTCMITRE cvelistV5CVSS v3 → 8.1 · severity → HIGH
  23. 2026-08-17 05:25 UTCEG score recompute
  24. 2026-08-17 05:25 UTCGHSA enrichment
  25. 2026-08-17 05:25 UTCMITRE cvelistV5
Show 6 more
  1. 2026-08-16 14:56 UTCEPSS rescore
  2. 2026-08-16 14:56 UTCEPSS rescore
  3. 2026-08-16 02:15 UTCEPSS rescore
  4. 2026-08-15 06:23 UTCNVD update
  5. 2026-08-15 06:13 UTCEG score recompute
  6. 2026-08-15 06:12 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-74410?
CVE-2026-74410 is a high vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: fix OOB read from firmware RX descriptor exceeding DMA buffer In rtwpcirxnapi(), newlen is computed as the sum of pkt_len (14-bit descriptor field, max 16383) and pktoffset (drvinfo_sz + shift, both…
When was CVE-2026-74410 disclosed?
CVE-2026-74410 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-2026-74410 actively exploited?
CVE-2026-74410 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 79.6% of all scored CVEs.
What is the CVSS score of CVE-2026-74410?
CVE-2026-74410 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-74410?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-74410, 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

Explore the affected products and dependency analysis for CVE-2026-74410

Explore →

Is Your Infrastructure Affected by CVE-2026-74410?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs