VULNERABILITY INTELLIGENCE
CVE-2026-64597
CVSS score9.8 CRITICAL
EPSS probability0.36%
CISA KEVNot currently listed
Published2026-08-06
Last modified2026-10-19
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in SMB2_close() replay A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_close_init() fails before the next send, cleanup retains the previous buffer type and frees that response again. Reset response bookkeeping before each attempt to prevent the stale free.
Weakness classification
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-415