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SUSE 12 SP5 Xen Important Denial Of Service Fix 2026-2066-1

suse
Calendar Grey May 26, 2026
Dist Suse Esm H88
SUSE security advisory updates for Xen addressing four important threats; required patching recommended.
An update that solves four vulnerabilities can now be installed.

Summary

## This update for xen fixes the following issues * CVE-2025-54505: Floating Point Divider State Sampling on AMD CPUs AMD- SN-7053 (bsc#1262428). * CVE-2025-54518: AMD-SN-7052: CPU OP Cache Corruption (bsc#1264066). * CVE-2026-23557: Xenstored DoS via XS_RESET_WATCHES command (bsc#1262178). * CVE-2026-23558: grant table v2 race in status page mapping (bsc#1262180).

Topics%20covered

Topics Covered

security advisory denial of service SuSE important xen CPU exploitation

References

* bsc#1262178

* bsc#1262180

* bsc#1262428

* bsc#1264066

Cross-

* CVE-2025-54505

* CVE-2025-54518

* CVE-2026-23557

* CVE-2026-23558

CVSS scores:

* CVE-2025-54505 ( SUSE ): 6.9

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

* CVE-2025-54505 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

* CVE-2025-54505 ( NVD ): 2.0

CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

* CVE-2025-54518 ( SUSE ): 7.3

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

* CVE-2025-54518 ( SUSE ): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-54518 ( NVD ): 7.3

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2066-1
Release Date: 2026-05-26T07:28:46Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service SuSE important xen CPU exploitation

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