CVE-2026-46136

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-28. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

wifi: mt76: mt7921: fix a potential clc buffer length underflow

The buf_len is used to limit the iterations for retrieving the country power setting and may underflow under certain conditions due to changes in the power table in CLC.

This underflow leads to an almost infinite loop or an invalid power setting resulting in driver initialization failure.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

May 28, 2026

Last Modified

June 24, 2026

Advisory Details (6)

Auto-updated Jun 24, 2026
No patch confirmed yet.
generic

wifi: mt76: mt7921: fix a potential clc buffer length underflow - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e451c325b000b9a0081fd93bc6d103d6943d4b55
generic

wifi: mt76: mt7921: fix a potential clc buffer length underflow - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a0111847f0b4f6023f6dd320114697514e024ba3
generic

wifi: mt76: mt7921: fix a potential clc buffer length underflow - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/90cc573fd2f46ddbc2c329e7814b5ba3deb7b939
generic

wifi: mt76: mt7921: fix a potential clc buffer length underflow - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5373f8b19e568b5c217832b9bbef165bd2b2df14
generic

wifi: mt76: mt7921: fix a potential clc buffer length underflow - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2a79b1a492bcfa725383b6580cd93a6862308c85
generic

wifi: mt76: mt7921: fix a potential clc buffer length underflow - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0aa63d33742b805d1a218d18d12b983cce4b2f7b

Vendor Advisories for CVE-2026-46136(2)

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

Patch Availability(22)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-25ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-25ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-08-25ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-25ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-25ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-08-25ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-08-25ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-25ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-08-25ubuntu
ubuntulinux-tools-realtime-hwe-22.04 (6.8.1-1056.57~22.04.2) @ jammy2026-08-25ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-08-25ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-08-25ubuntu

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 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux-6.16.1.106-3~deb11u1 ... 6.1.174-1~deb11u1 (20 versions)6.1.176-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)6.1.176-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.88-1~bpo12+1 (21 versions)6.12.88-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.7-1~bpo13+1 (133 versions)7.0.7-1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(22)

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 4× in last 7d / 83× 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.

Showing the most recent 100 of 248 total refreshes for this CVE.

  1. 2026-09-04 05:06 UTCEPSS rescore
  2. 2026-09-02 14:12 UTCEPSS rescore
  3. 2026-09-01 13:54 UTCEPSS rescore
  4. 2026-08-30 19:17 UTCEPSS rescore
  5. 2026-08-30 01:22 UTCEPSS rescore
  6. 2026-08-28 21:41 UTCEPSS rescore
  7. 2026-08-27 14:25 UTCEPSS rescore
  8. 2026-08-26 14:46 UTCEPSS rescore
  9. 2026-08-25 13:49 UTCEPSS rescore
  10. 2026-08-25 04:55 UTCEG score recompute
  11. 2026-08-25 04:55 UTCVendor advisory
  12. 2026-08-25 04:55 UTCGHSA enrichment
  13. 2026-08-23 14:44 UTCEG score recompute
  14. 2026-08-23 14:44 UTCVendor advisory
  15. 2026-08-23 14:44 UTCGHSA enrichment
  16. 2026-08-21 23:49 UTCEPSS rescore
  17. 2026-08-21 15:52 UTCEG score recompute
  18. 2026-08-21 15:52 UTCVendor advisory
  19. 2026-08-21 15:51 UTCGHSA enrichment
  20. 2026-08-20 22:55 UTCEPSS rescore
  21. 2026-08-20 21:51 UTCVendor advisory
  22. 2026-08-20 21:51 UTCGHSA enrichment
  23. 2026-08-20 11:01 UTCEG score recompute
  24. 2026-08-20 11:01 UTCVendor advisory
  25. 2026-08-20 11:01 UTCGHSA enrichment
Show 75 more
  1. 2026-08-19 17:04 UTCEPSS rescore
  2. 2026-08-18 13:48 UTCEPSS rescore
  3. 2026-08-17 13:47 UTCEPSS rescore
  4. 2026-08-17 09:00 UTCVendor advisory
  5. 2026-08-17 09:00 UTCGHSA enrichment
  6. 2026-08-16 15:11 UTCEG score recompute
  7. 2026-08-16 15:11 UTCVendor advisory
  8. 2026-08-16 15:11 UTCGHSA enrichment
  9. 2026-08-16 14:56 UTCEPSS rescore
  10. 2026-08-16 02:40 UTCEG score recompute
  11. 2026-08-16 02:40 UTCVendor advisory
  12. 2026-08-16 02:40 UTCGHSA enrichment
  13. 2026-08-16 02:14 UTCEPSS rescore
  14. 2026-08-15 01:30 UTCEPSS rescore
  15. 2026-08-14 23:00 UTCVendor advisory
  16. 2026-08-14 23:00 UTCGHSA enrichment
  17. 2026-08-14 12:10 UTCVendor advisory
  18. 2026-08-14 12:10 UTCGHSA enrichment
  19. 2026-08-14 01:21 UTCEG score recompute
  20. 2026-08-14 01:21 UTCVendor advisory
  21. 2026-08-14 01:21 UTCGHSA enrichment
  22. 2026-08-13 22:00 UTCEPSS rescore
  23. 2026-08-13 08:02 UTCVendor advisory
  24. 2026-08-13 08:02 UTCGHSA enrichment
  25. 2026-08-12 20:23 UTCEG score recompute
  26. 2026-08-12 20:23 UTCVendor advisory
  27. 2026-08-12 20:23 UTCGHSA enrichment
  28. 2026-08-12 13:51 UTCEPSS rescore
  29. 2026-08-12 09:30 UTCVendor advisory
  30. 2026-08-12 09:30 UTCGHSA enrichment
  31. 2026-08-11 21:49 UTCEG score recompute
  32. 2026-08-11 21:49 UTCVendor advisory
  33. 2026-08-11 21:48 UTCGHSA enrichment
  34. 2026-08-11 10:58 UTCVendor advisory
  35. 2026-08-11 10:58 UTCGHSA enrichment
  36. 2026-08-11 00:07 UTCEG score recompute
  37. 2026-08-11 00:07 UTCVendor advisory
  38. 2026-08-11 00:07 UTCGHSA enrichment
  39. 2026-08-11 00:00 UTCEPSS rescore
  40. 2026-08-10 09:40 UTCVendor advisory
  41. 2026-08-10 09:40 UTCGHSA enrichment
  42. 2026-08-09 22:50 UTCEG score recompute
  43. 2026-08-09 22:50 UTCVendor advisory
  44. 2026-08-09 22:50 UTCGHSA enrichment
  45. 2026-08-09 13:46 UTCEPSS rescore
  46. 2026-08-09 12:01 UTCVendor advisory
  47. 2026-08-09 12:01 UTCGHSA enrichment
  48. 2026-08-09 01:11 UTCEG score recompute
  49. 2026-08-09 01:11 UTCVendor advisory
  50. 2026-08-09 01:11 UTCGHSA enrichment
  51. 2026-08-08 16:37 UTCEPSS rescore
  52. 2026-08-08 14:20 UTCVendor advisory
  53. 2026-08-08 14:20 UTCGHSA enrichment
  54. 2026-08-08 03:30 UTCVendor advisory
  55. 2026-08-08 03:30 UTCGHSA enrichment
  56. 2026-08-07 16:41 UTCEG score recompute
  57. 2026-08-07 16:41 UTCVendor advisory
  58. 2026-08-07 16:41 UTCGHSA enrichment
  59. 2026-08-07 05:51 UTCVendor advisory
  60. 2026-08-07 05:51 UTCGHSA enrichment
  61. 2026-08-06 18:27 UTCEG score recompute
  62. 2026-08-06 18:27 UTCVendor advisory
  63. 2026-08-06 18:27 UTCGHSA enrichment
  64. 2026-08-06 13:47 UTCEPSS rescore
  65. 2026-08-06 07:38 UTCVendor advisory
  66. 2026-08-06 07:38 UTCGHSA enrichment
  67. 2026-08-05 20:49 UTCEG score recompute
  68. 2026-08-05 20:49 UTCVendor advisory
  69. 2026-08-05 20:48 UTCGHSA enrichment
  70. 2026-08-05 19:17 UTCEPSS rescore
  71. 2026-08-04 15:10 UTCEPSS rescore
  72. 2026-08-04 10:39 UTCEPSS rescore
  73. 2026-08-04 03:14 UTCVendor advisory
  74. 2026-08-04 03:14 UTCGHSA enrichment
  75. 2026-08-03 16:15 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-46136?
CVE-2026-46136 is a high vulnerability published on May 28, 2026. In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: fix a potential clc buffer length underflow The buf_len is used to limit the iterations for retrieving the country power setting and may underflow under certain conditions due to changes in the power table in…
When was CVE-2026-46136 disclosed?
CVE-2026-46136 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on June 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46136 actively exploited?
CVE-2026-46136 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 97.1% of all scored CVEs.
What is the CVSS score of CVE-2026-46136?
CVE-2026-46136 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-46136?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46136, 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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