PT-2026-4672 · Linux+2 · Linux Kernel+2

Syzbot · Published 2026-01-01 · Updated 2026-06-04 · CVE-2026-23010

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 use-after-free issue within the inet6 addr del() function. This flaw is related to the handling of temporary addresses, where a memory area is accessed after it has been freed. The issue was identified through syzbot testing and involves an incorrect order of operations during address deletion, leading to the use-after-free condition.

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

CWE-825

Related Identifiers

ALSA-2026:4723

BDU:2026-01132

CVE-2026-23010

ECHO-6A4D-05C9-AF73

OESA-2026-1566

OESA-2026-1567

OESA-2026-1570

OPENSUSE-SU-2026:20416-1

RHSA-2026:4723

SUSE-SU-2026:0471-1

SUSE-SU-2026:0472-1

SUSE-SU-2026:0962-1

SUSE-SU-2026:1081-1

SUSE-SU-2026:20477-1

SUSE-SU-2026:20498-1

SUSE-SU-2026:20838-1

SUSE-SU-2026:20845-1

SUSE-SU-2026:20876-1

SUSE-SU-2026:20931-1

SUSE-SU-2026:21284-1

USN-8278-1

USN-8278-2

USN-8289-1

USN-8289-2

USN-8296-1

USN-8296-2

USN-8393-1

Affected Products

Linuxmint

Linux Kernel

Ubuntu

References · 1946

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23010.json · Exploit
• https://ubuntu.com/security/CVE-2026-23078 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-23010 · Security Note
• https://ubuntu.com/security/CVE-2026-23089 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-71184 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23135 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23086 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-22997 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-31431 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-46000 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-23010 · Vendor Advisory
• https://osv.dev/vulnerability/USN-8289-2 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-23094 · Security Note
• https://ubuntu.com/security/CVE-2026-23163 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-71096 · Security Note