ESB-2026.3643 — Vulnetix

ESB-2026.3643 PUBLISHED CVSS 7.800000190734863 HIGH

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.3643 Security update for the Linux Kernel (Live Patch 16 for SUSE Linux Enterprise Micro 6.0) 14 April 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: Linux Kernel (Live Patch 16 for SUSE Linux Enterprise Micro 6.0) Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2026-23209 CVE-2026-23111 CVE-2026-23074 Original Bulletin: https://www.suse.com/support/update/announcement/2026/suse-su-202621040-1 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% (4th) CVE-2026-23074 2026-04-13 - --------------------------BEGIN INCLUDED TEXT-------------------- Security update for the Linux Kernel (Live Patch 16 for SUSE Linux Enterprise Micro 6.0) Announcement ID: SUSE-SU-2026:21040-1 Release Date: 2026-04-09T13:20:01Z Rating: important o bsc#1258051 References: o bsc#1258183 o bsc#1258784 o CVE-2026-23074 Cross-References: o CVE-2026-23111 o CVE-2026-23209 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 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-2026-23111 ( 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-2026-23111 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N /S:U/C:H/I:H/A:H CVSS scores: o CVE-2026-23111 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:H/I:H/A:H o CVE-2026-23111 ( 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 Affected o SUSE Linux Micro 6.1 Products: An update that solves three vulnerabilities can now be installed. Description: This update for the SUSE Linux Enterprise Kernel 6.4.0-39.1 fixes various security issues The following security issues were fixed: o CVE-2026-23074: net/sched: Enforce that teql can only be used as root qdisc (bsc#1258051). o CVE-2026-23111: netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate() (bsc#1258183). 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 SUSE Linux Micro 6.1 zypper in -t patch SUSE-SLE-Micro-6.1-kernel-318=1 Package List: o SUSE Linux Micro 6.1 (s390x x86_64) kernel-livepatch-MICRO-6-0_Update_16-debugsource-2-1.1 kernel-livepatch-6_4_0-39-default-2-1.1 kernel-livepatch-6_4_0-39-default-debuginfo-2-1.1 References: o https://www.suse.com/security/cve/CVE-2026-23074.html o https://www.suse.com/security/cve/CVE-2026-23111.html o https://www.suse.com/security/cve/CVE-2026-23209.html o https://bugzilla.suse.com/show_bug.cgi?id=1258051 o https://bugzilla.suse.com/show_bug.cgi?id=1258183 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 16 for SUSE Linux Enterprise Micro 6.0)

Timeline

Apr 14, 2026 CVE Published

References

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