PT-2025-38571 · Linux+8 · Linux Kernel+8

Published 2025-04-16 · Updated 2026-05-07 · CVE-2025-39864

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The Linux kernel contains a flaw within the wifi subsystem, specifically in the cfg80211 component, leading to a use-after-free condition in the cmp bss() function. This issue was addressed by adjusting cfg80211 update known bss() to correctly manage the freeing of beacon frame elements, ensuring they are only freed if not shared through the hidden beacon bss pointer. The issue was introduced with commit 776b3580178f.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALSA-2025:19440

ALSA-2025:19447

ALSA-2025:22405

AZL-67575

AZL-74921

BDU:2025-13684

CESA-2025_19440

CESA-2025_19447

CVE-2025-39864

DLA-4327-1

DLA-4328-1

DSA-6008-1

DSA-6009-1

ECHO-5A97-E4A0-5B4B

INFESA-2025_0006

INFSA-2025_19440

INFSA-2025_19447

INFSA-2025_22405

OPENSUSE-SU-2025:20081-1

RHSA-2025:19440

RHSA-2025:19447

RHSA-2025:21083

RHSA-2025:23450

RHSA-2025_19440

RHSA-2025_19447

SUSE-SU-2025:03600-1

SUSE-SU-2025:03634-1

SUSE-SU-2025:20851-1

SUSE-SU-2025:20861-1

SUSE-SU-2025:20870-1

SUSE-SU-2025:20898-1

SUSE-SU-2025:21074-1

SUSE-SU-2025:21139-1

SUSE-SU-2025:21179-1

SUSE-SU-2025:3751-1

SUSE-SU-2025:4057-1

SUSE-SU-2025:4132-1

SUSE-SU-2025:4141-1

USN-7909-1

USN-7909-2

USN-7909-3

USN-7909-4

USN-7909-5

USN-7910-1

USN-7910-2

USN-7933-1

USN-7938-1

USN-8095-1

USN-8095-2

USN-8095-3

USN-8095-4

USN-8095-5

USN-8100-1

USN-8125-1

USN-8126-1

USN-8165-1

USN-8261-1

Affected Products

Almalinux

Centos

Debian

Linuxmint

Linux Kernel

Red Hat

Rocky Linux

Suse

Ubuntu

References · 3601

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39864.json · Exploit
• https://git.kernel.org/stable/c/912c4b66bef713a20775cfbf3b5e9bd71525c716 · Patch
• https://ubuntu.com/security/CVE-2024-47691 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68237 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38279 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-67575 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-22125 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-39746 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38439 · Vendor Advisory
• https://git.kernel.org/stable/c/5b7ae04969f822283a95c866967e42b4d75e0eef · Patch
• https://ubuntu.com/security/CVE-2025-39675 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-39864 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40323 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38169 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38068 · Vendor Advisory