CVE-2026-93207 Linux Kernel - Use After Free

Linux kernel contains a memory handling vulnerability in SUNRPC's svcauth_gss_decode_credbody() where partially decoded rpc_gss_wire_cred state can persist across requests, letting attackers cause use-after-free or data corruption, exploit requires crafted RPC requests.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.47% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Use After Free
Impact
Denial Of Service, Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
24 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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