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SUSE 2026 1092-1 Security Advisory for Xen Important DoS Patch

suse
Calendar Grey March 27, 2026
Dist Suse Esm H88
Critical SUSE update for xen addresses important issues including DoS threats. Immediate patching recommended for security.
An update that solves one vulnerability can now be installed.

Summary

## This update for xen fixes the following issues: * CVE-2026-23554: xen: Use after free of paging structures in EPT (bsc#1259247, XSA-480) ## 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 zypper in -t patch SUSE-2026-1092=1 * SUSE Linux Enterprise Micro 5.5 zypper in -t patch SUSE-SLE-Micro-5.5-2026-1092=1 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-1092=1 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-1092=1 * SUSE Linux Enterprise Server 15 SP5 LTSS

Topics%20covered

Topics Covered

security advisory SuSE DoS important xen cve-2026-23554

References

* bsc#1259247

Cross-

* CVE-2026-23554

CVSS scores:

* CVE-2026-23554 ( SUSE ): 7.3

CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

* CVE-2026-23554 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

* CVE-2026-23554 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected Products:

* openSUSE Leap 15.5

* SUSE Linux Enterprise High Performance Computing 15 SP5

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5

* SUSE Linux Enterprise Micro 5.5

* SUSE Linux Enterprise Server 15 SP5

* SUSE Linux Enterprise Server 15 SP5 LTSS

* SUSE Linux Enterprise Server for SAP Applications 15 SP5

An update that solves one vulnerability can now be installed.

##

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:1092-1
Release Date: 2026-03-26T17:51:51Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE DoS important xen cve-2026-23554

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