Security update for xen
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).
AI Analysis
Technical Summary
The update fixes four vulnerabilities in Xen as identified by the SUSE Product Security Team. CVE-2026-42487 involves traversal of the x86 HVM I/O port list. CVE-2026-42488 concerns mismatched mapcache metadata on x86 architectures. CVE-2026-42489 and CVE-2026-42490 relate to potential abuse of the domctl lock mechanism. The advisory ID is SUSE-SU-2026:2364-1. No CVSS scores are provided. No affected versions are explicitly stated in the data. No exploits are known to be active in the wild.
Potential Impact
These vulnerabilities could allow unauthorized manipulation or abuse of Xen hypervisor components related to I/O port handling, mapcache metadata, and domctl locking. This could potentially lead to security breaches in virtualized environments running affected Xen versions. The exact impact details are not specified in the provided data.
Mitigation Recommendations
A security update has been released by the SUSE Product Security Team to address these vulnerabilities. Users should apply the official SUSE update identified by advisory SUSE-SU-2026:2364-1. Patch status is confirmed by the vendor advisory. No additional mitigation steps are specified.
Security update for xen
Description
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).
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The update fixes four vulnerabilities in Xen as identified by the SUSE Product Security Team. CVE-2026-42487 involves traversal of the x86 HVM I/O port list. CVE-2026-42488 concerns mismatched mapcache metadata on x86 architectures. CVE-2026-42489 and CVE-2026-42490 relate to potential abuse of the domctl lock mechanism. The advisory ID is SUSE-SU-2026:2364-1. No CVSS scores are provided. No affected versions are explicitly stated in the data. No exploits are known to be active in the wild.
Potential Impact
These vulnerabilities could allow unauthorized manipulation or abuse of Xen hypervisor components related to I/O port handling, mapcache metadata, and domctl locking. This could potentially lead to security breaches in virtualized environments running affected Xen versions. The exact impact details are not specified in the provided data.
Mitigation Recommendations
A security update has been released by the SUSE Product Security Team to address these vulnerabilities. Users should apply the official SUSE update identified by advisory SUSE-SU-2026:2364-1. Patch status is confirmed by the vendor advisory. No additional mitigation steps are specified.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- SUSE Product Security Team
- Advisory Id
- SUSE-SU-2026:2364-1
- Cve Count
- 4
- Additional Cves
- ["CVE-2026-42488","CVE-2026-42489","CVE-2026-42490"]
- Cvss Version
- null
Threat ID: 6a2bea1be617e2d834589bca
Added to database: 6/12/2026, 11:14:35 AM
Last enriched: 6/12/2026, 11:16:44 AM
Last updated: 6/12/2026, 12:19:52 PM
Views: 5
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