CVE-2026-42493
NVD: Addressing certain issues, in particular related to operations which may take excessively long and therefore would need preemption, has turned out overly costly. NVD: Since alternatives (HVM/PVH: HAP, PV: shim) are commonly available, the decision was to deprecate the functionality, while still retaining it for people to use at their own (security) risk. NVD: Memory-wise small enough guests may still be okay to run.
7.5 Severity
HIGH EPSS
0.0047 (39) KEV
-
Source-published summary
NVD: Addressing certain issues, in particular related to operations which may take excessively long and therefore would need preemption, has turned out overly costly. NVD: Since alternatives (HVM/PVH: HAP, PV: shim) are commonly available, the decision was to deprecate the functionality, while still retaining it for people to use at their own (security) risk. NVD: Memory-wise small enough guests may still be okay to run.
Possible impact
This high severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for high severity review.
Affected context
Affected product or version requires source confirmation.
Remediation / advisory
Remediation reference present; patch status requires confirmation in the linked advisory.
Why it matters
This high severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for high severity review.; CVSS 7.5 (HIGH); EPSS percentile 39; not listed in KEV; Remediation reference present; patch status requires confirmation in the linked advisory; sources: NVD.
What to verify
Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.
Exposure hint
exposure unknown
Impact tags
Urgency reasons
Source-derived note
Summary derived from NVD description; unsafe procedural detail is not shown.
Redaction metadata
- source summary used
- True
- fallback summary used
- False
- unsafe procedural detail present
- false
- raw source displayed
- false
- public summary redacted
- true
Remediation handoff
Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.
Safety note
This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.