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openSUSE 2026-2328-1 Xen Important Buffer Overflow Patch

suse
Calendar Grey June 10, 2026
Dist Suse Esm H88
This important update for openSUSE addresses multiple security issues in xen. Immediate installation is recommended.
An update that solves four vulnerabilities can now be installed.

Summary

## This update for xen fixes the following issues: * CVE-2026-42487: x86 HVM I/O port list traversal (bsc#1266952). * CVE-2026-42488: x86: mismatched mapcache metadata (bsc#1266955). * CVE-2026-42489,CVE-2026-42490: domctl lock open to abuse (bsc#1266953).

Topics%20covered

Topics Covered

security advisory buffer overflow important OpenSUSE xen CVE-2026-42487

References

* bsc#1266952

* bsc#1266953

* bsc#1266955

Cross-

* CVE-2026-42487

* CVE-2026-42488

* CVE-2026-42489

* CVE-2026-42490

CVSS scores:

* CVE-2026-42487 ( SUSE ): 8.8

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

* CVE-2026-42487 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

* CVE-2026-42488 ( SUSE ): 8.7

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

* CVE-2026-42488 ( SUSE ): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

* CVE-2026-42489 ( SUSE ): 6.8

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

* CVE-2026-42489 ( SUSE ): 5.3 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H

* CVE-2026-42490 ( SUSE ): 6.8

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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2328-1
Release Date: 2026-06-10T07:39:28Z
Rating: important

Topics%20covered

Topics Covered

security advisory buffer overflow important OpenSUSE xen CVE-2026-42487

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