Alerts This Week
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Alerts This Week
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SUSE 15 SP9 Kernel Alerts June 2027 SUSE-SU-2027-1258-7

suse
Calendar Grey March 27, 2026
Dist Suse Esm H88
An important security advisory for SUSE addressing two vulnerabilities in xen, recommending necessary updates and fixes.
An update that solves two vulnerabilities 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) * CVE-2026-23555: xen: Xenstored DoS by unprivileged domain (bsc#1259248, XSA-481) ## 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: * Server Applications Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP7-2026-1093=1 * Basesystem Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-1093=1 ## Package List: * Server Applications Module 15-SP7 (x86_64) * xen-debugsource-4.20.2_08-150700.3.28.1 * xen-tools-4.20.2_08-150700.3.28.1

Topics%20covered

Topics Covered

security advisory denial of service SuSE important xen use-after-free

References

* bsc#1259247

* bsc#1259248

Cross-

* CVE-2026-23554

* CVE-2026-23555

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

* CVE-2026-23555 ( SUSE ): 8.2

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

* CVE-2026-23555 ( SUSE ): 7.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

* CVE-2026-23555 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Affected Products:

* Basesystem Module 15-SP7

* Server Applications Module 15-SP7

* SUSE Linux Enterprise Desktop 15 SP7

* SUSE Linux Enterprise Real Time 15 SP7

* SUSE Linux Enterprise Server 15 SP7

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:1093-1
Release Date: 2026-03-26T17:52:22Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service SuSE important xen use-after-free

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