This update for xen fixes the following issues
* CVE-2025-54518: AMD-SN-7052: CPU OP Cache Corruption (bsc#1264066).
* CVE-2026-42487: x86 HVM I/O port list traversal (bsc#1266952).
* CVE-2026-42488: x86: mismatched mapcache metadata (bsc#1266955).
* CVE-2026-42489,CVE-2026-42490: domctl lock open to abuse (bsc#1266953).
## Special Instructions and Notes:
* Please reboot the system after installing this update.
## 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:
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-2613=1
* SUSE Linux Enterprise Server 15 SP4 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-2613=1
* SUSE Linux Enterprise Server for SAP Applications 15 SP4
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-2613=1
* SUSE Linux Enterprise Micro for Rancher 5.4
zypper in -t patch SUSE-SLE-Micro-5.4-2026-2613=1
* SUSE Linux Enterprise Micro 5.4
zypper in -t patch SUSE-SLE-Micro-5.4-2026-2613=1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-2613=1
* SUSE Linux Enterprise Micro for Rancher 5.3
zypper in -t patch SUSE-SLE-Micro-5.3-2026-2613=1
* SUSE Linux Enterprise Micro 5.3
zypper in -t patch...
Read the Full Advisory* SUSE Linux Enterprise Server for SAP Applications 15 SP4 (x86_64)
* xen-4.16.7_10-150400.4.86.2
* xen-tools-domU-4.16.7_10-150400.4.86.2
* xen-libs-debuginfo-4.16.7_10-150400.4.86.2
* xen-tools-debuginfo-4.16.7_10-150400.4.86.2
* xen-devel-4.16.7_10-150400.4.86.2
* xen-debugsource-4.16.7_10-150400.4.86.2
* xen-tools-domU-debuginfo-4.16.7_10-150400.4.86.2
* xen-libs-4.16.7_10-150400.4.86.2
* xen-tools-4.16.7_10-150400.4.86.2
* SUSE Linux Enterprise Server for SAP Applications 15 SP4 (noarch)
* xen-tools-xendomains-wait-disk-4.16.7_10-150400.4.86.2
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (x86_64)
* xen-4.16.7_10-150400.4.86.2
* xen-tools-domU-4.16.7_10-150400.4.86.2
* xen-libs-debuginfo-4.16.7_10-150400.4.86.2
* xen-tools-debuginfo-4.16.7_10-150400.4.86.2
* xen-devel-4.16.7_10-150400.4.86.2
* xen-debugsource-4.16.7_10-150400.4.86.2
* xen-tools-domU-debuginfo-4.16.7_10-150400.4.86.2
* xen-libs-4.16.7_10-150400.4.86.2
* xen-tools-4.16.7_10-150400.4.86.2
* SUSE Linux Enterprise High...
Read the Full Advisory* bsc#1264066
* bsc#1266952
* bsc#1266953
* bsc#1266955
## References:
* https://www.suse.com/security/cve/CVE-2025-54518.html
* https://www.suse.com/security/cve/CVE-2026-42487.html
* https://www.suse.com/security/cve/CVE-2026-42488.html
* https://www.suse.com/security/cve/CVE-2026-42489.html
* https://www.suse.com/security/cve/CVE-2026-42490.html
* https://bugzilla.suse.com/show_bug.cgi?id=1264066
* https://bugzilla.suse.com/show_bug.cgi?id=1266952
* https://bugzilla.suse.com/show_bug.cgi?id=1266953
* https://bugzilla.suse.com/show_bug.cgi?id=1266955
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