PT-2025-44143 · Linux+3 · Linux Kernel+3

Published 2025-08-28 · Updated 2026-05-26 · CVE-2025-40075

Positive Technologies (AI Summary)

CVSS v2.0

6.0

Medium

Base vector

AV:L/AC:H/Au:S/C:C/I:C/A:C

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

Description A flaw exists in the Linux kernel related to tcp metrics. The issue involves replacing three instances of the dst dev() function with a lockdep enabled helper, specifically dst dev net rcu(). This change addresses a potential problem within the networking stack.

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

Exploit

RCE

Weakness Enumeration

CWE-20

Related Identifiers

AZL-68927

BDU:2025-16405

CVE-2025-40075

ECHO-D9E6-2DE9-F06C

OPENSUSE-SU-2025:15702-1

OPENSUSE-SU-2025:20172-1

OPENSUSE-SU-2026:10301-1

SUSE-SU-2025:4393-1

SUSE-SU-2025:4422-1

SUSE-SU-2025:4505-1

SUSE-SU-2025:4516-1

SUSE-SU-2025:4517-1

SUSE-SU-2025:4521-1

SUSE-SU-2026:0316-1

SUSE-SU-2026:20012-1

SUSE-SU-2026:20015-1

SUSE-SU-2026:20021-1

SUSE-SU-2026:20039-1

SUSE-SU-2026:20059-1

SUSE-SU-2026:20473-1

SUSE-SU-2026:20496-1

USN-8029-1

USN-8029-2

USN-8029-3

USN-8030-1

USN-8048-1

Affected Products

Debian

Linuxmint

Linux Kernel

Ubuntu

References · 1140

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40075.json · Exploit
• https://ubuntu.com/security/CVE-2025-40333 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40294 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40106 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40341 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68183 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40285 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40119 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40046 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40102 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-8029-3 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40049 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68180 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40292 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40326 · Vendor Advisory