Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 615
Alerts This Week
Warning Icon 1 615

SUSE 15 SP7 Xen Moderate Patch for Buffer Overrun and vCPU Problems

suse
Calendar Grey February 20, 2026
Dist Suse Esm H88
SUSE updates address two vulnerabilities in Xen, including buffer overrun and vCPU isolation issues. Install the patch now.
An update that solves two vulnerabilities and has one security fix can now be installed.

Summary

## This update for xen fixes the following issues: * CVE-2025-58150: buffer overrun with shadow paging + tracing (XSA-477) (bsc#1256745). * CVE-2026-23553: incomplete IBPB for vCPU isolation (XSA-479) (bsc#1256747). ## 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: * Basesystem Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-589=1 * Server Applications Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP7-2026-589=1 ## Package List: * Basesystem Module 15-SP7 (x86_64) * xen-tools-domU-4.20.2_06-150700.3.25.1 * xen-libs-debuginfo-4.20.2_06-150700.3.25.1

Topics%20covered

Topics Covered

security advisory moderate SuSE buffer overrun patch vcpu isolation

References

* bsc#1027519

* 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-2026:0589-1
Release Date: 2026-02-20T10:05:27Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate SuSE buffer overrun patch vcpu isolation

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.