Is CVE-2017-15594 in the CISA KEV catalog?

No. CVE-2017-15594 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-15594?

CVE-2017-15594 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2017-15594?

CVE-2017-15594 has an EPSS score of 0.38% (30th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-15594?

Upgrade xen on debian 11 to 4.8.2+xsa245-0+deb9u1 or later.

CVE & CISA-KEV Catalog

CVE-2017-15594

HIGH

8.8

CVSS v3

NVD

Description

An issue was discovered in Xen through 4.9.x allowing x86 SVM PV guest OS users to cause a denial of service (hypervisor crash) or gain privileges because IDT settings are mishandled during CPU hotplugging.

How to fix

Remediation Available

xenDebian

Fixed in:4.8.2+xsa245-0+deb9u1CVE-2017-15594

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploit Intelligence

0.38%probability of exploitation in 30 days

30thpercentile

Low risk: more likely to be exploited than 30% of all known CVEs.

References

Patch1

xenbits.xen.org

Third-Party Advisory1

securitytracker.com

Other references4

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.