CVE-2025-39951

HIGH EPSS 3.5%
Published Oct 4, 20258mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Oct 4, 2025 8mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: um: virtio_uml: Fix use-after-free after put_device in probe When register_virtio_device() fails in virtio_uml_probe(), the code sets vu_dev->registered = 1 even though the device was not successfully registered. This can lead to use-after-free or other issues.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
3.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 12

VendorProductVersionRange
linuxlinux_kernel*≥5.5  –  <5.10.245
linuxlinux_kernel*≥5.11  –  <5.15.194
linuxlinux_kernel*≥5.16  –  <6.1.154
linuxlinux_kernel*≥6.2  –  <6.6.108
linuxlinux_kernel*≥6.7  –  <6.12.49
linuxlinux_kernel*≥6.13  –  <6.16.9
linuxlinux_kernel6.17any
linuxlinux_kernel6.17any
linuxlinux_kernel6.17any
linuxlinux_kernel6.17any
linuxlinux_kernel6.17any
linuxlinux_kernel6.17any

References 7

  • git.kernel.org https://git.kernel.org/stable/c/00e98b5a69034b251bb36dc6e7123d7648e218e4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/14c231959a16ca41bfdcaede72483362a8c645d7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4f364023ddcfe83f7073b973a9cb98584b7f2a46
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5e94e44c9cb30d7a383d8ac227f24a8c9326b770
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7ebf70cf181651fe3f2e44e95e7e5073d594c9c0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/aaf900a83508c8cd5cdf765e7749f9076196ec7f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c2ff91255e0157b356cff115d8dc3eeb5162edf2
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/00e98b5a69034b251bb36dc6e7123d7648e218e4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/14c231959a16ca41bfdcaede72483362a8c645d7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4f364023ddcfe83f7073b973a9cb98584b7f2a46
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5e94e44c9cb30d7a383d8ac227f24a8c9326b770
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7ebf70cf181651fe3f2e44e95e7e5073d594c9c0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/aaf900a83508c8cd5cdf765e7749f9076196ec7f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c2ff91255e0157b356cff115d8dc3eeb5162edf2
    Patch