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SUSE Linux Micro 6.0 Important Kernel Security Update 2026-20858-1

suse
Calendar Grey March 27, 2026
Dist Suse Esm H88
An important security advisory update for SUSE Linux Micro 6.0 addressing seven critical issues to enhance system integrity.
An update that solves seven vulnerabilities can now be installed.

Summary

## This update for the SUSE Linux Enterprise Kernel 6.4.0-28.1 fixes various security issues The following security issues were fixed: * CVE-2025-38159: wifi: rtw88: fix the 'para' buffer size to avoid reading out of bounds (bsc#1257629). * CVE-2025-38488: smb: client: fix use-after-free in crypt_message when using async crypto (bsc#1247240). * CVE-2025-40258: mptcp: fix race condition in mptcp_schedule_work() (bsc#1255053). * CVE-2025-40284: Bluetooth: MGMT: cancel mesh send timer when hdev removed (bsc#1257669). * CVE-2025-40297: net: bridge: fix use-after-free due to MST port state bypass (bsc#1255895). * CVE-2025-68813: ipvs: fix ipv4 null-ptr-deref in route error path (bsc#1256644). * CVE-2025-71085: ipv6: BUG() in pskb_expand_head() as part of calipso_skbuff_setattr() (bsc#1256624).

Topics%20covered

Topics Covered

security advisory buffer overflow important kernel CVE references SUSE Linux Micro

References

* bsc#1247240

* bsc#1255053

* bsc#1255895

* bsc#1256624

* bsc#1256644

* bsc#1257629

* bsc#1257669

Cross-

* CVE-2025-38159

* CVE-2025-38488

* CVE-2025-40258

* CVE-2025-40284

* CVE-2025-40297

* CVE-2025-68813

* CVE-2025-71085

CVSS scores:

* CVE-2025-38159 ( 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-2025-38159 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-38159 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

* CVE-2025-38488 ( 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-2025-38488 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-38488 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-40258 ( SUSE ): 7.3

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:20858-1
Release Date: 2026-03-24T16:49:04Z
Rating: important

Topics%20covered

Topics Covered

security advisory buffer overflow important kernel CVE references SUSE Linux Micro

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