ESB-2026.3556 — Vulnetix

ESB-2026.3556 PUBLISHED CVSS 7.800000190734863 HIGH

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.3556 Security update for the Linux Kernel (Live Patch 33 for SUSE Linux Enterprise 15 SP5) 14 April 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: Linux Kernel (Live Patch 33 for SUSE Linux Enterprise 15 SP5) Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2025-71120 CVE-2026-22999 CVE-2026-23209 CVE-2026-23074 Original Bulletin: https://www.suse.com/support/update/announcement/2026/suse-su-20261270-1 Comment: CVSS (Max): 7.8 CVE-2026-23209 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) CVSS Source: SUSE Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H EPSS (Max): 0.0% (7th) CVE-2025-71120 2026-04-12 - --------------------------BEGIN INCLUDED TEXT-------------------- Security update for the Linux Kernel (Live Patch 33 for SUSE Linux Enterprise 15 SP5) Announcement ID: SUSE-SU-2026:1270-1 Release Date: 2026-04-11T16:34:14Z Rating: important o bsc#1256780 o bsc#1257238 References: o bsc#1258051 o bsc#1258784 o CVE-2025-71120 o CVE-2026-22999 Cross-References: o CVE-2026-23074 o CVE-2026-23209 o CVE-2025-71120 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N /UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N o CVE-2025-71120 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N /S:U/C:N/I:N/A:H o CVE-2025-71120 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-22999 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:H/AT:N/PR:L /UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N o CVE-2026-22999 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N /S:U/C:H/I:H/A:H o CVE-2026-22999 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-23074 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L /UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS scores: o CVE-2026-23074 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N /S:U/C:H/I:H/A:H o CVE-2026-23074 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-23074 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-23209 ( SUSE ): 8.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:L /UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N o CVE-2026-23209 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N /S:U/C:H/I:H/A:H o CVE-2026-23209 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-23209 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:H/I:H/A:H o openSUSE Leap 15.5 o SUSE Linux Enterprise High Performance Computing 15 SP5 Affected o SUSE Linux Enterprise Live Patching 15-SP5 Products: o SUSE Linux Enterprise Micro 5.5 o SUSE Linux Enterprise Real Time 15 SP5 o SUSE Linux Enterprise Server 15 SP5 o SUSE Linux Enterprise Server for SAP Applications 15 SP5 An update that solves four vulnerabilities can now be installed. Description: This update for the SUSE Linux Enterprise Kernel 5.14.21-150500.55.130 fixes various security issues The following security issues were fixed: o CVE-2025-71120: SUNRPC: svcauth_gss: avoid NULL deref on zero length gss_token in gss_read_proxy_verf (bsc#1256780). o CVE-2026-22999: net/sched: sch_qfq: do not free existing class in qfq_change_class() (bsc#1257238). o CVE-2026-23074: net/sched: Enforce that teql can only be used as root qdisc (bsc#1258051). o CVE-2026-23209: macvlan: fix error recovery in macvlan_common_newlink() (bsc#1258784). Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: o openSUSE Leap 15.5 zypper in -t patch SUSE-2026-1270=1 o SUSE Linux Enterprise Live Patching 15-SP5 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2026-1270=1 Package List: o openSUSE Leap 15.5 (ppc64le s390x x86_64) kernel-livepatch-5_14_21-150500_55_130-default-debuginfo-4-150500.2.1 kernel-livepatch-5_14_21-150500_55_130-default-4-150500.2.1 kernel-livepatch-SLE15-SP5_Update_33-debugsource-4-150500.2.1 o SUSE Linux Enterprise Live Patching 15-SP5 (ppc64le s390x x86_64) kernel-livepatch-5_14_21-150500_55_130-default-debuginfo-4-150500.2.1 kernel-livepatch-5_14_21-150500_55_130-default-4-150500.2.1 kernel-livepatch-SLE15-SP5_Update_33-debugsource-4-150500.2.1 References: o https://www.suse.com/security/cve/CVE-2025-71120.html o https://www.suse.com/security/cve/CVE-2026-22999.html o https://www.suse.com/security/cve/CVE-2026-23074.html o https://www.suse.com/security/cve/CVE-2026-23209.html o https://bugzilla.suse.com/show_bug.cgi?id=1256780 o https://bugzilla.suse.com/show_bug.cgi?id=1257238 o https://bugzilla.suse.com/show_bug.cgi?id=1258051 o https://bugzilla.suse.com/show_bug.cgi?id=1258784 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. 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It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://portal.auscert.org.au/bulletins/ =========================================================================== AUSCERT The University of Queensland, Brisbane QLD 4072 Australia e: auscert@auscert.org.au t: +61 (0)7 3365 4417 Allies in Cyber Security ===========================================================================

Risk Scores

CVSS v3.1

7.800000190734863

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products

Vendor	Product	Versions
SUSE	Linux Kernel (Live Patch 33 for SUSE Linux Enterprise 15 SP5)

Timeline

Apr 14, 2026 CVE Published

References

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