CVE-2026-68406

UNRATEDCVSS · not yet scored
—
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS v2: —Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

wifi: cfg80211: validate PMSR FTM preamble range

PMSR FTM request parsing accepts preamble values outside the enumerated nl80211 preamble range.

Reject out-of-range values before using them in the parser capability bit test using the policy.

[drop unnecessary check]

CVSS v3
—
EchelonGraph score
Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
EG Score
—
EG Risk
—
EPSS PROB
0.2%
EPSS %ILE
7th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

EG Severity
Not assessed: no CVSS publishedA missing CVSS is not a severity of zero.
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
No SSVC decision: EchelonGraph has not assessed this CVECISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the BOD 26-04 block below.

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 10, 2026

Last Modified

August 19, 2026

References (8)

Vendor Advisories for CVE-2026-68406(3)

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

Patch Availability(9)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-gcp-edge (5.15.0.1118.128~20.04.1) @ focal2026-10-06ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1114.120~20.04.1) @ focal2026-10-06ubuntu
ubuntulinux-tools-gcp-lts-22.04 (5.15.0.1118.115) @ jammy2026-10-06ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1122.131) @ jammy2026-10-06ubuntu
ubuntulinux-tools-azure-lts-26.04 (7.0.0-1017.17) @ resolute2026-10-06ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1015.15) @ resolute2026-10-06ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-38.38) @ resolute2026-10-06ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1080 (5.15.0-1080.84) @ jammy2026-10-06ubuntu
redhatkernel-0:5.14.0-687.47.1.el9_82026-09-14redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 3 ecosystems)
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (56 versions)
  • every version up to 6.1.187-1: fixed in 6.1.187-1
—
linux-6.126.12.100-1~deb12u1
  • every version up to 6.12.101-1~deb12u1: fixed in 6.12.101-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.12.96-1 (32 versions)
  • every version up to 6.12.101-1: fixed in 6.12.101-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (161 versions)
  • every version up to 7.1.6-1: fixed in 7.1.6-1
—

Additional Vendor Advisories

(8)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 8× in last 7d / 44× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 98 of 106 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 2 repeat rows among the latest 100 are merged into the row they repeat. The 8 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  2. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  3. 2026-10-18 03:19 UTCEG score recompute
  4. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  5. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  6. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  7. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  8. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  9. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  10. 2026-10-12 15:45 UTCEG score recompute
  11. 2026-10-11 19:30 UTCEG score recompute
  12. 2026-10-11 16:45 UTCEG score recompute
  13. 2026-10-11 14:06 UTCEG score recompute
  14. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  15. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  16. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  17. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  18. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  19. 2026-10-06 23:59 UTCVendor advisory
  20. 2026-10-06 23:58 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9
  21. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  22. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  23. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  24. 2026-10-04 04:27 UTCVendor advisory
  25. 2026-10-04 04:27 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9
Show 73 more
  1. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  2. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  3. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  4. 2026-09-30 22:37 UTCEG score recompute
  5. 2026-09-30 22:37 UTCVendor advisory
  6. 2026-09-30 22:37 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9
  7. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  8. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  9. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  10. 2026-09-27 12:48 UTCVendor advisory
  11. 2026-09-27 12:48 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9
  12. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  13. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  14. 2026-09-23 15:53 UTCVendor advisory
  15. 2026-09-23 15:53 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9
  16. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  17. 2026-09-20 20:21 UTCVendor advisory
  18. 2026-09-20 20:21 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9
  19. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  20. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  21. 2026-09-18 00:49 UTCVendor advisory
  22. 2026-09-18 00:49 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9
  23. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  24. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  25. 2026-09-15 00:29 UTCVendor advisory
  26. 2026-09-15 00:29 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9
  27. 2026-09-12 01:23 UTCVendor advisory
  28. 2026-09-12 01:23 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9
  29. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  30. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  31. 2026-09-09 05:51 UTCVendor advisory
  32. 2026-09-09 05:51 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9
  33. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  34. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  35. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  36. 2026-09-05 22:21 UTCVendor advisory
  37. 2026-09-05 22:21 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9
  38. 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  39. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  40. 2026-09-03 02:49 UTCVendor advisory
  41. 2026-09-03 02:49 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9
  42. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  43. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  44. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  45. 2026-08-31 00:00 UTCVendor advisory
  46. 2026-08-31 00:00 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9
  47. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  48. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  49. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  50. 2026-08-28 04:28 UTCVendor advisory
  51. 2026-08-28 04:28 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9
  52. 2026-08-26 14:47 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  53. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  54. 2026-08-25 08:54 UTCVendor advisory
  55. 2026-08-25 08:54 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9
  56. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  57. 2026-08-22 13:22 UTCVendor advisory
  58. 2026-08-22 13:22 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9
  59. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  60. 2026-08-20 22:56 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  61. 2026-08-19 17:49 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9
  62. 2026-08-19 17:31 UTCNVD update
  63. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  64. 2026-08-19 16:53 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9
  65. 2026-08-19 16:43 UTCMITRE cvelistV5
  66. 2026-08-18 13:49 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  67. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  68. 2026-08-17 06:31 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9
  69. 2026-08-17 06:18 UTCNVD update
  70. 2026-08-17 05:35 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9
  71. 2026-08-17 05:24 UTCMITRE cvelistV5
  72. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  73. 2026-08-16 04:28 UTCGHSA enrichmentGHSA-4fpv-jc67-f9w9

Related CVEs(same vendor)

Frequently asked(4)

What is CVE-2026-68406?
CVE-2026-68406 is a vulnerability whose severity is not yet rated; its CVE record was published on August 10, 2026. In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: validate PMSR FTM preamble range PMSR FTM request parsing accepts preamble values outside the enumerated nl80211 preamble range. Reject out-of-range values before using them in the parser capability bit test using…
When was the CVE record for CVE-2026-68406 published?
The CVE record for CVE-2026-68406 was published on August 10, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of August 19, 2026; the record at its source may have been updated since.
Is CVE-2026-68406 actively exploited?
CVE-2026-68406 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (7th percentile of EPSS-scored CVEs).
How do I remediate CVE-2026-68406?
A fix for CVE-2026-68406 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-68406 are linked in the Vendor Advisories panel on this page.

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