CVE-2025-39720

MEDIUM EPSS 3.3%
Published Sep 5, 20259mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Sep 5, 2025 9mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix refcount leak causing resource not released When ksmbd_conn_releasing(opinfo->conn) returns true,the refcount was not decremented properly, causing a refcount leak that prevents the count from reaching zero and the memory from being released.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
3.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 5

VendorProductVersionRange
linuxlinux_kernel*≥5.15  –  <6.6.103
linuxlinux_kernel*≥6.7  –  <6.12.44
linuxlinux_kernel*≥6.13  –  <6.16.4
linuxlinux_kernel6.17any
linuxlinux_kernel6.17any

References 4

  • git.kernel.org https://git.kernel.org/stable/c/36e010bb865fbaa1202fe9bcce3fd486d6db7606
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/89bb430f621124af39bb31763c4a8b504c9651e2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9a7abce6e8c0e2145b346a6d4abf0d9655e9b0e8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a1d2bab4d53368a526c97aba92671dd71814f95a
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/36e010bb865fbaa1202fe9bcce3fd486d6db7606
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/89bb430f621124af39bb31763c4a8b504c9651e2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9a7abce6e8c0e2145b346a6d4abf0d9655e9b0e8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a1d2bab4d53368a526c97aba92671dd71814f95a
    Patch