CVE-2021-47670

8.8 highEPSS 0.2%

High (8.8) in linux linux kernel. EPSS 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: can: peak_usb: fix use after free bugs After calling peak_usb_netif_rx_ni(skb), dereferencing skb is unsafe. Especially, the can_frame cf which aliases skb memory is accessed after the peak_usb_netif_rx_ni(). Reordering the lines solves the issue.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 13% of CVEs (scores of 2026-10-31)
CWE: CWE-416
Published: 2025-04-17
Modified: 2026-08-04
Record from: the NVD, synced 2026-10-19

Affected

linux:linux_kernel

References

https://git.kernel.org/stable/c/50aca891d7a554db0901b245167cd653d73aaa71
https://git.kernel.org/stable/c/5408824636fa0dfedb9ecb0d94abd573131bfbbe
https://git.kernel.org/stable/c/ddd1416f44130377798c1430b76503513b7497c2
https://git.kernel.org/stable/c/ec939c13c3fff2114479769c8380b7f1a54feca9

Check your stack JSON