SUSE SLES15 Security Update : kernel (Live Patch 18 for SUSE Linux Enterprise 15 SP6) (SUSE-SU-2026:2588-1)

high Nessus Plugin ID 323088

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Synopsis

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

Description

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2588-1 advisory.

This update for the SUSE Linux Enterprise Kernel 6.4.0-150600.23.81 fixes various security issues

The following security issues were fixed:

- CVE-2026-23278: netfilter: nf_tables: always walk all pending catchall elements (bsc#1260907).
- CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (bsc#1261640).
- CVE-2026-31504: net: fix fanout UAF in packet_release() via NETDEV_UP race (bsc#1263088).
- CVE-2026-31694: fuse: reject oversized dirents in page cache (bsc#1263902).
- CVE-2026-43503: final dirty.frag related fixes (bsc#1266229).
- CVE-2026-46323: net: gro: don't merge zcopy skbs (bsc#1268282).
- net/sched: fix pedit partial COW leading to page cache (bsc#1267625).

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 kernel-livepatch-6_4_0-150600_23_81-default package.

Plugin Details

Severity: High

ID: 323088

File Name: suse_SU-2026-2588-1.nasl

Version: 1.4

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 6/26/2026

Updated: 7/13/2026

Supported Sensors: Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.2

Percentile: 99.76

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.3

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

CVSS Score Source: CVE-2026-31402

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.2

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

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

CVSS Score Source: CVE-2026-46323

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:kernel-livepatch-6_4_0-150600_23_81-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: 6/23/2026

Vulnerability Publication Date: 3/20/2026

Exploitable With

Core Impact

Reference Information

CVE: CVE-2026-23278, CVE-2026-31402, CVE-2026-31504, CVE-2026-31694, CVE-2026-43503, CVE-2026-46323

SuSE: SUSE-SU-2026:2588-1

Detections

Analytics