SUSE Linux Enterprise 15 SP4 Core Key Updates SUSE-SU-2026-1509-4
suse
April 14, 2026
An update that solves seven vulnerabilities can now be installed.
Summary
## This update for the SUSE Linux Enterprise Kernel 4.12.14-122.275 fixes various security issues The following security issues were fixed: * CVE-2023-53794: cifs: fix session state check in reconnect to avoid use- after-free issue (bsc#1255235). * CVE-2025-39973: i40e: add validation for ring_len param (bsc#1252036). * CVE-2025-40018: ipvs: Defer ip_vs_ftp unregister during netns cleanup (bsc#1252689). * CVE-2025-71120: SUNRPC: svcauth_gss: avoid NULL deref on zero length gss_token in gss_read_proxy_verf (bsc#1256780). * CVE-2026-22999: net/sched: sch_qfq: do not free existing class in qfq_change_class() (bsc#1257238). * CVE-2026-23074: net/sched: Enforce that teql can only be used as root qdisc (bsc#1258051). * CVE-2026-23209: macvlan: fix error recovery in macvlan_common_newlink()
Topics Covered
References
* bsc#1252036
* bsc#1252689
* bsc#1255235
* bsc#1256780
* bsc#1257238
* bsc#1258051
* bsc#1258784
Cross-
* CVE-2023-53794
* CVE-2025-39973
* CVE-2025-40018
* CVE-2025-71120
* CVE-2026-22999
* CVE-2026-23074
* CVE-2026-23209
CVSS scores:
* CVE-2023-53794 ( SUSE ): 7.7
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
* CVE-2023-53794 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2025-39973 ( 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-2025-39973 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2025-40018 ( 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-2025-40018 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
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Severity
important
Lowest
Low
Medium
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Critical
Announcement ID: SUSE-SU-2026:1304-1
Release Date: 2026-04-13T16:04:42Z
Rating: important
Topics Covered
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