Is CVE-2017-8905 in the CISA KEV catalog?

No. CVE-2017-8905 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-8905?

CVE-2017-8905 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2017-8905?

CVE-2017-8905 has an EPSS score of 0.42% (34th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-8905?

Upgrade xen on debian 11 to 4.8.0~rc3-1 or later.

CVE & CISA-KEV Catalog

CVE-2017-8905

HIGH

8.8

CVSS v3

NVD

Description

Xen through 4.6.x on 64-bit platforms mishandles a failsafe callback, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-215.

CWE-682

How to fix

Remediation Available

xenDebian

Fixed in:4.8.0~rc3-1CVE-2017-8905

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

0.42%probability of exploitation in 30 days

34thpercentile

Low risk: more likely to be exploited than 34% of all known CVEs.

References

Patch1

xenbits.xen.org

Vendor Advisory1

blog.xenproject.org

Other references3

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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.