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SUSE Linux Enterprise 15 SP8 Essential Security Update SUSE-SU-2026-0980-5

suse
Calendar Grey April 6, 2026
Dist Suse Esm H88
Important security update for SUSE Linux Kernel addressing critical issues and vulnerabilities. Immediate installation recommended.
An update that solves three vulnerabilities and has two security fixes can now be installed.

Summary

## This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.7.31 fixes various security issues The following security issues were fixed: * CVE-2026-23074: net/sched: Enforce that teql can only be used as root qdisc (bsc#1258051). * CVE-2026-23111: netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate() (bsc#1258183). * CVE-2026-23209: macvlan: fix error recovery in macvlan_common_newlink() (bsc#1258784). The following non security issue was fixed: * Fix NULL pointer dereference in smb2_query_server_interfaces Livepatch for to restore a null check of server->ops->query_server_interfaces that was dropped by mistake. (bsc#1259896 bsc#1259962). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like

Topics%20covered

Topics Covered

security advisory security issue SuSE DoS important kernel

References

* bsc#1258051

* bsc#1258183

* bsc#1258784

* bsc#1259896

* bsc#1259962

Cross-

* CVE-2026-23074

* CVE-2026-23111

* CVE-2026-23209

CVSS scores:

* 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

* 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

* 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

* 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

* 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

* 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

* 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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:1187-1
Release Date: 2026-04-05T10:04:24Z
Rating: important

Topics%20covered

Topics Covered

security advisory security issue SuSE DoS important kernel

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