CVE-2025-40285

In the Linux kernel, the following vulnerability has been resolved: smb/server: fix possible refcount leak in smb2_sess_setup() Reference count of ksmbd_session will leak when session need reconnect. Fix this by adding the missing ksmbd_user_session_put().

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/379510a815cb2e64eb0a379cb62295d6ade65df0
https://git.kernel.org/stable/c/6fc935f798d44a8eb8a5e6659198399fbf57b981
https://git.kernel.org/stable/c/d37b2c81c83d6c0d5ca582f4fe73c672983f9e0d
https://git.kernel.org/stable/c/dcc51dfe6ff26b52cac106865a172ac982d78401
https://git.kernel.org/stable/c/e671f9bb97805771380c98de944e2ceab6949188

Configurations

No configuration.

History

30 Jul 2026, 06:24

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5

06 Dec 2025, 22:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-12-06 22:15

Updated : 2026-07-30 06:24

NVD link : CVE-2025-40285

Mitre link : CVE-2025-40285

CVE.ORG link : CVE-2025-40285

JSON object : View

Products Affected

No product.

CWE

No CWE.

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