ESB-2026.4274 — Vulnetix

ESB-2026.4274 PUBLISHED CVSS 7 HIGH

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.4274 Security update for the Linux Kernel (Live Patch 12 for SUSE Linux Enterprise Micro 6.0) 28 April 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: Linux Kernel (Live Patch 12 for SUSE Linux Enterprise Micro 6.0) Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2025-40309 CVE-2026-23268 Original Bulletin: https://www.suse.com/support/update/announcement/2026/suse-su-202621299-1 Comment: CVSS (Max): 7.0 CVE-2026-23268 (CVSS:3.1/AV:L/AC:H/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:H/PR:L/UI:N/S:U/C:H/I:H/A:H EPSS (Max): 0.0% (13th) CVE-2025-40309 2026-04-26 - --------------------------BEGIN INCLUDED TEXT-------------------- Security update for the Linux Kernel (Live Patch 12 for SUSE Linux Enterprise Micro 6.0) Announcement ID: SUSE-SU-2026:21299-1 Release Date: 2026-04-22T17:17:06Z Rating: important o bsc#1255066 References: o bsc#1259859 o CVE-2025-40309 Cross-References: o CVE-2026-23268 o CVE-2025-40309 ( 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-2025-40309 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N /S:U/C:H/I:H/A:H o CVE-2026-23268 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:H/AT:N/PR:L CVSS scores: /UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N o CVE-2026-23268 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N /S:U/C:H/I:H/A:H o CVE-2026-23268 ( 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 two vulnerabilities can now be installed. Description: This update for the SUSE Linux Enterprise Kernel 6.4.0-35.1 fixes various security issues The following security issues were fixed: o CVE-2025-40309: Bluetooth: SCO: Fix UAF on sco_conn_free (bsc#1255066). o CVE-2026-23268: apparmor: fix unprivileged local user can do privileged policy management (bsc#1259859). 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-362=1 Package List: o SUSE Linux Micro 6.1 (s390x x86_64) kernel-livepatch-6_4_0-35-default-debuginfo-8-1.1 kernel-livepatch-MICRO-6-0_Update_12-debugsource-8-1.1 kernel-livepatch-6_4_0-35-default-8-1.1 References: o https://www.suse.com/security/cve/CVE-2025-40309.html o https://www.suse.com/security/cve/CVE-2026-23268.html o https://bugzilla.suse.com/show_bug.cgi?id=1255066 o https://bugzilla.suse.com/show_bug.cgi?id=1259859 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AUSCERT's members. As AUSCERT did not write the document quoted above, AUSCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AUSCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. 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

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

Affected Products

Vendor	Product	Versions
SUSE	Linux Kernel (Live Patch 12 for SUSE Linux Enterprise Micro 6.0)

Timeline

Apr 28, 2026 CVE Published

References

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