CVE-2026-64464

UNRATEDCVSS · not yet scoredTrending — 3 sources updated this week
—
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS v2: —Exploit: None knownExposed: 0

A fix is available — apply it.

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

xhci: sideband: fix ring sg table pages leak

xhci_ring_to_sgtable() allocates a temporary pages array and uses it to build the returned sg_table with sg_alloc_table_from_pages().

The error paths free the pages array, but the success path returns the sg_table without freeing it. This leaks the temporary array every time a sideband client gets an endpoint or event ring buffer.

Free the pages array after sg_alloc_table_from_pages() succeeds. The returned sg_table has its own scatterlist entries and does not depend on the temporary array after construction.

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%
EPSS %ILE
7%
KEV
Not listed

Published

July 25, 2026

Last Modified

August 17, 2026

References (3)

Vendor Advisories for CVE-2026-64464(1)

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

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-31.31) @ resolute2026-09-15ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1013.13) @ resolute2026-09-15ubuntu
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-09-15ubuntu

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

(1 across 1 ecosystem)
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (158 versions)7.1.4-1—

All Vendor Advisories

(3)

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 8× in last 7d / 36× 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. 2026-09-15 09:19 UTCVendor advisory
  2. 2026-09-15 09:19 UTCGHSA enrichment
  3. 2026-09-12 09:10 UTCVendor advisory
  4. 2026-09-12 09:10 UTCGHSA enrichment
  5. 2026-09-11 14:53 UTCEPSS rescore
  6. 2026-09-11 09:37 UTCEPSS rescore
  7. 2026-09-09 08:31 UTCVendor advisory
  8. 2026-09-09 08:30 UTCGHSA enrichment
  9. 2026-09-08 22:01 UTCEPSS rescore
  10. 2026-09-07 16:01 UTCEPSS rescore
  11. 2026-09-06 13:47 UTCEPSS rescore
  12. 2026-09-05 15:31 UTCEPSS rescore
  13. 2026-09-05 05:57 UTCGHSA enrichment
  14. 2026-09-04 05:07 UTCEPSS rescore
  15. 2026-09-02 14:12 UTCEPSS rescore
  16. 2026-09-01 23:46 UTCGHSA enrichment
  17. 2026-09-01 13:54 UTCEPSS rescore
  18. 2026-09-01 04:40 UTCEPSS rescore
  19. 2026-08-30 19:17 UTCEPSS rescore
  20. 2026-08-30 01:22 UTCEPSS rescore
  21. 2026-08-30 00:02 UTCGHSA enrichment
  22. 2026-08-28 21:42 UTCEPSS rescore
  23. 2026-08-26 14:47 UTCEPSS rescore
  24. 2026-08-26 04:56 UTCGHSA enrichment
  25. 2026-08-25 13:49 UTCEPSS rescore
Show 49 more
  1. 2026-08-23 05:12 UTCGHSA enrichment
  2. 2026-08-23 00:19 UTCEPSS rescore
  3. 2026-08-21 23:49 UTCEPSS rescore
  4. 2026-08-20 22:55 UTCEPSS rescore
  5. 2026-08-20 05:28 UTCGHSA enrichment
  6. 2026-08-19 17:04 UTCEPSS rescore
  7. 2026-08-17 13:47 UTCEPSS rescore
  8. 2026-08-17 05:43 UTCGHSA enrichment
  9. 2026-08-17 05:25 UTCNVD update
  10. 2026-08-17 05:16 UTCGHSA enrichment
  11. 2026-08-17 05:05 UTCMITRE cvelistV5
  12. 2026-08-16 14:56 UTCEPSS rescore
  13. 2026-08-16 00:55 UTCGHSA enrichment
  14. 2026-08-15 01:30 UTCEPSS rescore
  15. 2026-08-13 22:00 UTCEPSS rescore
  16. 2026-08-13 01:10 UTCGHSA enrichment
  17. 2026-08-12 13:51 UTCEPSS rescore
  18. 2026-08-11 00:00 UTCEPSS rescore
  19. 2026-08-10 01:26 UTCGHSA enrichment
  20. 2026-08-09 13:47 UTCEPSS rescore
  21. 2026-08-08 16:37 UTCEPSS rescore
  22. 2026-08-07 01:42 UTCGHSA enrichment
  23. 2026-08-06 13:47 UTCEPSS rescore
  24. 2026-08-05 19:17 UTCEPSS rescore
  25. 2026-08-05 19:17 UTCEPSS rescore
  26. 2026-08-04 15:10 UTCEPSS rescore
  27. 2026-08-04 10:39 UTCEPSS rescore
  28. 2026-08-04 01:59 UTCGHSA enrichment
  29. 2026-08-03 10:36 UTCEPSS rescore
  30. 2026-08-02 02:27 UTCEPSS rescore
  31. 2026-08-01 04:16 UTCEPSS rescore
  32. 2026-08-01 02:15 UTCEG score recompute
  33. 2026-08-01 02:15 UTCGHSA enrichment
  34. 2026-07-30 16:28 UTCEPSS rescore
  35. 2026-07-30 01:30 UTCEPSS rescore
  36. 2026-07-30 01:30 UTCEPSS rescore
  37. 2026-07-29 02:30 UTCEG score recompute
  38. 2026-07-29 02:30 UTCGHSA enrichment
  39. 2026-07-28 15:37 UTCEPSS rescore
  40. 2026-07-27 14:14 UTCEPSS rescore
  41. 2026-07-26 14:54 UTCEPSS rescore
  42. 2026-07-26 14:54 UTCEPSS rescore
  43. 2026-07-26 02:47 UTCEG score recompute
  44. 2026-07-26 02:46 UTCGHSA enrichment
  45. 2026-07-25 14:18 UTCEPSS rescore
  46. 2026-07-25 14:18 UTCEPSS rescore
  47. 2026-07-25 10:39 UTCNVD update
  48. 2026-07-25 09:26 UTCEG score recompute
  49. 2026-07-25 09:21 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor)

Frequently asked(4)

What is CVE-2026-64464?
CVE-2026-64464 is a publicly disclosed vulnerability published on July 25, 2026. In the Linux kernel, the following vulnerability has been resolved: xhci: sideband: fix ring sg table pages leak xhciringto_sgtable() allocates a temporary pages array and uses it to build the returned sg_table with sgalloctablefrompages(). The error paths free the pages array, but the success path…
When was CVE-2026-64464 disclosed?
CVE-2026-64464 was first published in the National Vulnerability Database on July 25, 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-2026-64464 actively exploited?
CVE-2026-64464 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 93.0% of all scored CVEs.
How do I remediate CVE-2026-64464?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64464, 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-2026-64464

Explore →

Is Your Infrastructure Affected by CVE-2026-64464?

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

Start Free Scan →Browse All CVEs