SUSE SLES12 Security Update : kernel (Live Patch 69 for SUSE Linux Enterprise 12 SP5) (SUSE-SU-2026:0521-1)

high Nessus Plugin ID 299257

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0521-1 advisory.

This update for the SUSE Linux Enterprise kernel 4.12.14-122.261 fixes various security issues

The following security issues were fixed:

- CVE-2023-53321: wifi: mac80211_hwsim: drop short frames (bsc#1250314).
- CVE-2025-38352: posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del() (bsc#1249205).
- CVE-2025-40186: tcp: Don't call reqsk_fastopen_remove() in tcp_conn_request() (bsc#1253439).

The following non security issue was fixed:

- bsc#1250280: don't expose {file,inode}_operations with static lifetimes Fix issue with static lifetime empty_iops/no_open_fops by allocating them on the heap. Make sure previously assigned instances don't become dangling. (bsc#1250280).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected kgraft-patch-4_12_14-122_261-default package.

Plugin Details

Severity: High

ID: 299257

File Name: suse_SU-2026-0521-1.nasl

Version: 1.1

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 2/17/2026

Updated: 2/17/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.4

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 5.1

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:N/A:C

CVSS Score Source: CVE-2023-53321

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.6

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:kgraft-patch-4_12_14-122_261-default

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/14/2026

Vulnerability Publication Date: 9/4/2021

CISA Known Exploited Vulnerability Due Dates: 9/25/2025

Reference Information

CVE: CVE-2023-53321, CVE-2025-38352, CVE-2025-40186

SuSE: SUSE-SU-2026:0521-1

Detections

Analytics