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SUSE Linux Micro Kernel Important Security Update 2026-21673-1

suse
Calendar Grey May 19, 2026
Dist Suse Esm H88
Install important kernel update for SUSE Linux Micro 6.0 addressing two known issues with significant risks.
An update that solves two vulnerabilities can now be installed.

Summary

## The SUSE Linux Enterprise Micro 6.0 and Micro 6.1 kernel was updated to fix various security issues The following security issues were fixed: * CVE-2025-54518: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache (bsc#1264013). * CVE-2026-46300: net: skbuff: propagate shared-frag marker through pskb_copy() (bsc#1265209). The following non security issue was fixed: * io-wq: check that the predecessor is hashed in io_wq_remove_pending() (git- fixes).

Topics%20covered

Topics Covered

security advisory information leak SuSE important kernel kernel issue

References

* bsc#1264013

* bsc#1265209

Cross-

* CVE-2025-54518

* CVE-2026-46300

CVSS scores:

* CVE-2025-54518 ( 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

* CVE-2025-54518 ( SUSE ): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-54518 ( NVD ): 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

* CVE-2026-46300 ( SUSE ): 8.6

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

* CVE-2026-46300 ( SUSE ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected Products:

* SUSE Linux Micro 6.0

An update that solves two vulnerabilities can now be installed.

##

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:21673-1
Release Date: 2026-05-15T09:50:08Z
Rating: important

Topics%20covered

Topics Covered

security advisory information leak SuSE important kernel kernel issue

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