Is CVE-2016-9377 in the CISA KEV catalog?

No. CVE-2016-9377 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-9377?

CVE-2016-9377 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2016-9377?

CVE-2016-9377 has an EPSS score of 0.39% (31th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-9377?

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

CVE & CISA-KEV Catalog

CVE-2016-9377

MEDIUM

5.5

CVSS v3

NVD

Description

Xen 4.5.x through 4.7.x on AMD systems without the NRip feature, when emulating instructions that generate software interrupts, allows local HVM guest OS users to cause a denial of service (guest crash) by leveraging IDT entry miscalculation.

CWE-682

How to fix

Remediation Available

xenDebian

Fixed in:4.8.0-1CVE-2016-9377

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

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.39%probability of exploitation in 30 days

31stpercentile

Low risk: more likely to be exploited than 31% of all known CVEs.

References

Patch1

xenbits.xen.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.