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Xen Hypervisor CVE-2026-42495 XSA-497

MEDIUM
N/A vendor:alpine
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Lifecycle Timeline

1
Analysis Generated
Aug 11, 2026 - 09:09 vuln.today

DescriptionCVE.org

Alpine Linux: xen fixed in 4.22.0-r0

AnalysisAI

Xen Hypervisor contains a security vulnerability tracked as XSA-497, addressed in Alpine Linux's xen package version 4.22.0-r0. The specific vulnerability class, affected component, and impact are not disclosed in the available intelligence - only the Alpine Linux vendor advisory confirms a fix exists. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Attacker controls guest VM
Exploit
Triggers XSA-497 vulnerability via hypervisor interface
Impact
Achieves host-level impact

Vulnerability AssessmentAI

Exploitation Exploitation conditions cannot be determined from the available data - no CVE description detail, CVSS vector, or XSA advisory content was provided. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Risk assessment is severely constrained by missing data: no CVSS vector, no CWE, no EPSS score, no KEV status, and no POC availability signal are present in the intelligence provided. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Without the XSA-497 vulnerability details, a precise attack scenario cannot be constructed. In the general Xen threat model, a malicious or compromised guest virtual machine could exploit a hypervisor flaw to escape its isolation boundary and execute code on the host, affect other guests, or cause a host crash. …
Remediation The primary remediation is to upgrade the Alpine Linux xen package to version 4.22.0-r0 or later using the standard Alpine package manager (apk upgrade xen). … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-42495 XSA-497 vulnerability details – vuln.today

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