Details
- Type
- Race Condition
- Impact
- Denial Of Service
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- 11 September 2026
- Updated
- 15 October 2026
CVE-2026-89546 Linux Kernel - Race Condition
Linux kernel contains a race condition in SUNRPC backchannel handling caused by improper teardown of NFS callback service, letting attackers cause resource leaks or use-after-free, exploit requires race condition timing.
CVSS base score
9.8
/10
Critical- CISA KEV
- Not listed
- Public exploit
- None known
- Authentication
- Not required
- EPSS
- 0.55% chance of exploitation in 30 days