CVE-2026-64585

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-06. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
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

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:

can: esd_usb: kill anchored URBs before freeing netdevs

esd_usb_disconnect() frees each CAN netdev with free_candev() inside its per-netdev loop and only calls unlink_all_urbs(dev) afterwards. The per-netdev private data (struct esd_usb_net_priv) is embedded in the net_device allocation returned by alloc_candev(), so once free_candev() has run, dev->nets[i] points to freed memory. unlink_all_urbs() then dereferences the freed dev->nets[i] to kill the per-netdev TX anchor (usb_kill_anchored_urbs(&priv->tx_submitted)), clear active_tx_jobs, and reset priv->tx_contexts[].

Reorder the teardown so the anchored URBs are killed before the netdevs are freed, matching other CAN/USB drivers in the same directory such as ems_usb, usb_8dev and mcba_usb, which unregister, then unlink, then free: unregister the netdevs first (which stops their TX queues), call unlink_all_urbs(dev) once, then free the netdevs.

This issue was found by an in-house static analysis tool.

CVSS v3
7.8
EG Score
7.8(high)
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
2%
KEV
Not listed

Published

August 6, 2026

Last Modified

August 17, 2026

Advisory Details (6)

Auto-updated Aug 8, 2026
No patch confirmed yet.
generic

can: esd_usb: kill anchored URBs before freeing netdevs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c43122fef328a70045fe7621c06de6b2b8e19264
generic

can: esd_usb: kill anchored URBs before freeing netdevs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/aa1d005927db38af783c1a4a8a00a39e0229ab2d
generic

can: esd_usb: kill anchored URBs before freeing netdevs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a3314f10369df70925140f59bbe069718f65a0b9
generic

can: esd_usb: kill anchored URBs before freeing netdevs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a02e1d8f191324583599544d54e59e6a2b74bb0e
generic

can: esd_usb: kill anchored URBs before freeing netdevs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/765ba1c91823a296447528791b89a6504947fd5c
generic

can: esd_usb: kill anchored URBs before freeing netdevs - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5832c55b3c824ba2fe9c36ac3c411baddcce053e

Vendor Advisories for CVE-2026-64585(2)

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

Affected Packages

(5 across 4 ecosystems)
Debian:12(2)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (55 versions)6.1.180-1—
linux-6.12—6.12.100-1~deb12u1—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 7.2~rc5-1~exp1 (500 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.96-1 (31 versions)6.12.100-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (157 versions)7.1.5-1—

Data Freshness Timeline

(refreshed 30× 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.

  1. 2026-08-21 03:28 UTCEG score recompute
  2. 2026-08-21 03:28 UTCVendor advisory
  3. 2026-08-21 03:28 UTCGHSA enrichment
  4. 2026-08-20 22:55 UTCEPSS rescore
  5. 2026-08-20 14:19 UTCGHSA enrichment
  6. 2026-08-20 00:06 UTCEG score recompute
  7. 2026-08-20 00:06 UTCGHSA enrichment
  8. 2026-08-19 17:04 UTCEPSS rescore
  9. 2026-08-19 10:56 UTCGHSA enrichment
  10. 2026-08-18 21:47 UTCEG score recompute
  11. 2026-08-18 21:47 UTCGHSA enrichment
  12. 2026-08-18 13:48 UTCEPSS rescore
  13. 2026-08-18 08:38 UTCGHSA enrichment
  14. 2026-08-17 19:26 UTCEG score recompute
  15. 2026-08-17 19:26 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 05:41 UTCEG score recompute
  18. 2026-08-17 05:41 UTCGHSA enrichment
  19. 2026-08-17 05:13 UTCEG score recompute
  20. 2026-08-17 05:13 UTCGHSA enrichment
  21. 2026-08-16 20:35 UTCEG score recompute
  22. 2026-08-16 20:35 UTCGHSA enrichment
  23. 2026-08-16 14:56 UTCEPSS rescore
  24. 2026-08-16 07:26 UTCEG score recompute
  25. 2026-08-16 07:26 UTCGHSA enrichment
Show 33 more
  1. 2026-08-15 18:17 UTCGHSA enrichment
  2. 2026-08-15 05:08 UTCEG score recompute
  3. 2026-08-15 05:08 UTCGHSA enrichment
  4. 2026-08-15 01:30 UTCEPSS rescore
  5. 2026-08-14 15:58 UTCGHSA enrichment
  6. 2026-08-14 02:49 UTCEG score recompute
  7. 2026-08-14 02:49 UTCGHSA enrichment
  8. 2026-08-13 22:00 UTCEPSS rescore
  9. 2026-08-13 13:40 UTCGHSA enrichment
  10. 2026-08-13 00:30 UTCEG score recompute
  11. 2026-08-13 00:30 UTCGHSA enrichment
  12. 2026-08-12 13:51 UTCEPSS rescore
  13. 2026-08-12 11:21 UTCGHSA enrichment
  14. 2026-08-11 22:11 UTCEG score recompute
  15. 2026-08-11 22:11 UTCGHSA enrichment
  16. 2026-08-11 09:02 UTCEG score recompute
  17. 2026-08-11 09:02 UTCGHSA enrichment
  18. 2026-08-11 00:00 UTCEPSS rescore
  19. 2026-08-10 19:53 UTCGHSA enrichment
  20. 2026-08-10 06:44 UTCGHSA enrichment
  21. 2026-08-09 17:35 UTCEG score recompute
  22. 2026-08-09 17:35 UTCGHSA enrichment
  23. 2026-08-09 13:47 UTCEPSS rescore
  24. 2026-08-09 04:26 UTCEG score recompute
  25. 2026-08-09 04:26 UTCGHSA enrichment
  26. 2026-08-08 16:37 UTCEPSS rescore
  27. 2026-08-08 15:17 UTCEG score recompute▲ 7.80
  28. 2026-08-08 15:17 UTCGHSA enrichment
  29. 2026-08-08 15:16 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  30. 2026-08-06 13:47 UTCEPSS rescore
  31. 2026-08-06 08:21 UTCNVD update
  32. 2026-08-06 07:25 UTCEG score recompute
  33. 2026-08-06 07:25 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-64585?
CVE-2026-64585 is a high vulnerability published on August 6, 2026. In the Linux kernel, the following vulnerability has been resolved: can: esd_usb: kill anchored URBs before freeing netdevs esdusbdisconnect() frees each CAN netdev with free_candev() inside its per-netdev loop and only calls unlinkallurbs(dev) afterwards. The per-netdev private data (struct…
When was CVE-2026-64585 disclosed?
CVE-2026-64585 was first published in the National Vulnerability Database on August 6, 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-2026-64585 actively exploited?
CVE-2026-64585 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 97.8% of all scored CVEs.
What is the CVSS score of CVE-2026-64585?
CVE-2026-64585 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-64585?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64585, 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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