SUSE 12 SP5 Kernel Important Security Update 2026-1904-1
suse
May 18, 2026
An update that solves four vulnerabilities can now be installed.
Summary
## The SUSE Linux Enterprise 12 SP5 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). * CVE-2026-43284: xfrm: esp: avoid in-place decrypt on shared skb frags (bsc#1264449). * CVE-2026-46333: Fixed logic bug in the Linux kernel's __ptrace_may_access() function (bsc#1265308).
Topics Covered
References
* bsc#1264013
* bsc#1264449
* bsc#1265209
* bsc#1265308
Cross-
* CVE-2025-54518
* CVE-2026-43284
* CVE-2026-46300
* CVE-2026-46333
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-2026-43284 ( SUSE ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
* CVE-2026-43284 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
* CVE-2026-43284 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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Announcement ID: SUSE-SU-2026:1904-1
Release Date: 2026-05-17T15:22:35Z
Rating: important
Topics Covered
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