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SUSE Linux 15 SP5 Kernel Update Important DoS Threat 2026-0539-1

suse
Calendar Grey February 16, 2026
Dist Suse Esm H88
Urgent SUSE kernel patch addresses critical vulnerabilities to enhance overall system security and ensure safer operations for users
An update that solves four vulnerabilities can now be installed.

Summary

## This update for the SUSE Linux Enterprise kernel 5.14.21-150500.55.116 fixes various security issues The following security issues were fixed: * CVE-2023-53321: wifi: mac80211_hwsim: drop short frames (bsc#1250314). * CVE-2025-38111: net/mdiobus: Fix potential out-of-bounds read/write access (bsc#1249455). * CVE-2025-38352: posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del() (bsc#1249205). * CVE-2025-39742: RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask() (bsc#1249480). ## 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: * openSUSE Leap 15.5

Topics%20covered

Topics Covered

security advisory security issue SuSE DoS important kernel

References

* bsc#1249205

* bsc#1249455

* bsc#1249480

* bsc#1250314

Cross-

* CVE-2023-53321

* CVE-2025-38111

* CVE-2025-38352

* CVE-2025-39742

CVSS scores:

* CVE-2023-53321 ( 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-2023-53321 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2023-53321 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

* CVE-2023-53321 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

* CVE-2025-38111 ( 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-2025-38111 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-38111 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

* CVE-2025-38352 ( SUSE ): 7.3

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0539-1
Release Date: 2026-02-15T15:33:36Z
Rating: important

Topics%20covered

Topics Covered

security advisory security issue SuSE DoS important kernel

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