7.8

CVE-2026-64585: linux

CVSS: 7.8v3.1HighReceived
AliasesUBUNTU-CVE-2026-64585DEBIAN-CVE-2026-64585
Published 06-08-2026Last modified 23-08-2026
Open JSON

Vulnerability summary

CVE-2026-64585 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.12% chance of exploitation in the next 30 days, higher than 1.7% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.12%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 23 · Related 21
MGASA-2026-0336MGASA-2026-0337OPENSUSE-SU-2026:11476-1OPENSUSE-SU-2026:21910-1SUSE-SU-2026:23477-1SUSE-SU-2026:23481-1

Timeline

  1. 06-08-2026
    PublishedVulnerability first disclosed.
  2. 23-08-2026
    Last modifiedVulnerability information updated.

Description

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 metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.12%

Chance of exploitation in the next 30 days

Percentile

2%

Versus all other CVEs

30-day change

0.00 pp

From 0.12% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.12%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu169 products
  • linuxAll versions (No fix recorded) | < 6.8.0-147.147 | < 7.0.0-38.38
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1067.70 | < 7.0.0-1014.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.1.180-1 | < 6.12.100-1 | < 7.1.5-1
  • linux-6.12< 6.12.100-1~deb12u1
Linux1 product
  • linux≥ 96d8e90382dc336b5de401164597edfdc2e8d9f1, < d12f6add48f2da15c8c8281961d3faad804c76cf | ≥ 96d8e90382dc336b5de401164597edfdc2e8d9f1, < aa1d005927db38af783c1a4a8a00a39e0229ab2d | ≥ 96d8e90382dc336b5de401164597edfdc2e8d9f1, < a02e1d8f191324583599544d54e59e6a2b74bb0e | ≥ 96d8e90382dc336b5de401164597edfdc2e8d9f1, < a3314f10369df70925140f59bbe069718f65a0b9 | ≥ 96d8e90382dc336b5de401164597edfdc2e8d9f1, < 765ba1c91823a296447528791b89a6504947fd5c | ≥ 96d8e90382dc336b5de401164597edfdc2e8d9f1, < 5832c55b3c824ba2fe9c36ac3c411baddcce053e | ≥ 96d8e90382dc336b5de401164597edfdc2e8d9f1, < c43122fef328a70045fe7621c06de6b2b8e19264 | 2.6.36

3 vendors · 172 products

References

21 links
Show all 21 references