CVE-2026-68470

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: mac80211: validate extension-frame layout before RX

Extension frames only have the extension header at the regular 802.11 header offset. The generic RX path can still reach helpers and interface dispatch code that read regular header address fields before unsupported extension subtypes are dropped.

mac80211 currently only handles S1G beacon extension frames. Drop other extension subtypes before they can reach regular-header RX processing. For S1G beacons, linearize the SKB with the management-frame path and require the fixed S1G beacon header, including optional fixed fields indicated by frame control, before generic RX dispatch.

Route S1G beacons through the station/default-link RX path without regular-header station lookup. Avoid regular-header address reads in the mac80211 RX paths that process S1G extension beacons, including accept-frame, duplicate-detection, address-copy, and MLO address-translation paths.

Also make ieee80211_get_bssid() length-safe before returning the S1G source-address pointer.

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
21%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 17, 2026

Advisory Details (2)

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

wifi: mac80211: validate extension-frame layout before RX - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/625fc704b19cb48d7d269ad54ffffb4d3bf9c7ed
generic

wifi: mac80211: validate extension-frame layout before RX - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/57d503ce32eccfa7650065ca4c560f7e29a2e676

Vendor Advisories for CVE-2026-68470(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 26× in last 7d / 26× 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 06:04 UTCGHSA enrichment
  2. 2026-08-19 18:25 UTCEG score recompute
  3. 2026-08-19 18:25 UTCGHSA enrichment
  4. 2026-08-19 17:04 UTCEPSS rescore
  5. 2026-08-19 06:20 UTCGHSA enrichment
  6. 2026-08-18 18:26 UTCEG score recompute
  7. 2026-08-18 18:26 UTCGHSA enrichment
  8. 2026-08-18 13:49 UTCEPSS rescore
  9. 2026-08-18 13:49 UTCEPSS rescore
  10. 2026-08-18 06:44 UTCGHSA enrichment
  11. 2026-08-17 19:03 UTCEG score recompute
  12. 2026-08-17 19:03 UTCGHSA enrichment
  13. 2026-08-17 13:47 UTCEPSS rescore
  14. 2026-08-17 06:30 UTCEG score recompute
  15. 2026-08-17 06:30 UTCGHSA enrichment
  16. 2026-08-17 06:01 UTCEG score recompute▲ 8.80
  17. 2026-08-17 06:01 UTCGHSA enrichment
  18. 2026-08-17 05:54 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  19. 2026-08-17 05:35 UTCEG score recompute
  20. 2026-08-17 05:35 UTCGHSA enrichment
  21. 2026-08-17 05:24 UTCMITRE cvelistV5
  22. 2026-08-16 14:56 UTCEPSS rescore
  23. 2026-08-16 14:56 UTCEPSS rescore
  24. 2026-08-15 06:20 UTCNVD update
  25. 2026-08-15 06:20 UTCEG score recompute
Show 1 more
  1. 2026-08-15 06:02 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-68470?
CVE-2026-68470 is a high vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: validate extension-frame layout before RX Extension frames only have the extension header at the regular 802.11 header offset. The generic RX path can still reach helpers and interface dispatch code that read…
When was CVE-2026-68470 disclosed?
CVE-2026-68470 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-2026-68470 actively exploited?
CVE-2026-68470 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 78.6% of all scored CVEs.
What is the CVSS score of CVE-2026-68470?
CVE-2026-68470 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-68470?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-68470, 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-2026-68470

Explore →

Is Your Infrastructure Affected by CVE-2026-68470?

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

Start Free Scan →Browse All CVEs