CVE-2026-52964

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-06-24. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

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

ALSA: usb-audio: Bound MIDI 2.0 endpoint descriptor scans

The USB MIDI 2.0 endpoint parser has the same descriptor walking pattern as the legacy MIDI parser. It validates bLength against bNumGrpTrmBlock before reading baAssoGrpTrmBlkID[], but not against the remaining bytes in the endpoint-extra scan.

A malformed device can therefore make later baAssoGrpTrmBlkID[] reads consume bytes past the walked descriptor.

Reject zero-length and overlong descriptors while walking endpoint extras.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

June 24, 2026

Last Modified

July 14, 2026

Advisory Details (5)

Auto-updated Jul 16, 2026
No patch confirmed yet.
generic

ALSA: usb-audio: Bound MIDI 2.0 endpoint descriptor scans - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/fafc97bd01e4c737eaeafadfdadb1af4bbfa7307
generic

ALSA: usb-audio: Bound MIDI 2.0 endpoint descriptor scans - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f9c184a83574549a36ea69b755f650e57d164c78
generic

ALSA: usb-audio: Bound MIDI 2.0 endpoint descriptor scans - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a310b4bebda5e4a1b26520c0cc5145ccd6d617e2
generic

ALSA: usb-audio: Bound MIDI 2.0 endpoint descriptor scans - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/918be519c7876329e1b6e2ea1c59f0b75e792dca
generic

ALSA: usb-audio: Bound MIDI 2.0 endpoint descriptor scans - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/17e76b19de1aff5ff4de64d269290bd1b07a01d3

Vendor Advisories for CVE-2026-52964(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-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-08-30ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-08-30ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-08-30ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-30ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-08-30ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-08-30ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-30ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-08-30ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-30ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-30ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-30ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-30ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-08-30ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-08-30ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-30ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-30ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-08-30ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-08-30ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-30ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-30ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-30ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-30ubuntu

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

(2 across 2 ecosystems)
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)6.12.94-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (140 versions)7.0.10-1—

All Vendor Advisories

(22)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 4× in last 7d / 58× 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 172 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-52964?
CVE-2026-52964 is a medium vulnerability published on June 24, 2026. In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Bound MIDI 2.0 endpoint descriptor scans The USB MIDI 2.0 endpoint parser has the same descriptor walking pattern as the legacy MIDI parser. It validates bLength against bNumGrpTrmBlock before reading…
When was CVE-2026-52964 disclosed?
CVE-2026-52964 was first published in the National Vulnerability Database on June 24, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-52964 actively exploited?
CVE-2026-52964 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 97.3% of all scored CVEs.
What is the CVSS score of CVE-2026-52964?
CVE-2026-52964 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-52964?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-52964, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-52964

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