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SUSE 15 SP7 Xen Moderate Security Update - CVE-2025-58150, CVE-2026-23553

suse
Calendar Grey January 28, 2026
Dist Suse Esm H88
SUSE update 2026:0329-1 addresses moderate security issues for Xen. Install fixes for buffer overrun and vCPU isolation.
An update that solves two vulnerabilities can now be installed.

Summary

## This update for xen fixes the following issues: * CVE-2025-58150: Fixed buffer overrun with shadow paging and tracing (XSA-477) (bsc#1256745) * CVE-2026-23553: Fixed incomplete IBPB for vCPU isolation (XSA-479) (bsc#1256747)

Topics%20covered

Topics Covered

security advisory moderate SuSE buffer overrun xen vcpu isolation

References

* bsc#1256745

* bsc#1256747

Cross-

* CVE-2025-58150

* CVE-2026-23553

CVSS scores:

* CVE-2025-58150 ( SUSE ): 4.8

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

* CVE-2025-58150 ( SUSE ): 5.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

* CVE-2025-58150 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

* CVE-2026-23553 ( SUSE ): 6.8

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

* CVE-2026-23553 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

* CVE-2026-23553 ( NVD ): 2.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

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

Announcement ID: SUSE-SU-2026:0329-1
Release Date: 2026-01-28T15:39:41Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate SuSE buffer overrun xen vcpu isolation

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