CVE-2026-64585: can: esd_usb: kill anchored URBs before freeing netdevs
CSIRTS triage
- What
- The esd_usb CAN driver does not properly kill anchored URBs before freeing network devices, causing use-after-free.
- Who is affected
- Systems running Linux kernel with esd_usb CAN driver for esd CAN-to-USB adapters.
- Urgency
- Medium severity (CVSS 5.5); use-after-free leading to potential crash or corruption, not currently exploited.
- Action
- Apply Linux kernel patch to kill anchored URBs before freeing netdevs in esd_usb driver.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64585
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-645850.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-64585 | coverage & exploitation status | NVD · CVE.org |
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