Is CVE-2017-12135 in the CISA KEV catalog?

No. CVE-2017-12135 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-12135?

CVE-2017-12135 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2017-12135?

CVE-2017-12135 has an EPSS score of 0.45% (36th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-12135?

Upgrade xen on debian 11 to 4.8.1-1+deb9u3 or later.

CVE & CISA-KEV Catalog

CVE-2017-12135

HIGH

8.8

CVSS v3

NVD

Description

Xen allows local OS guest users to cause a denial of service (crash) or possibly obtain sensitive information or gain privileges via vectors involving transitive grants.

CWE-682

How to fix

Remediation Available

xenDebian

Fixed in:4.8.1-1+deb9u3CVE-2017-12135

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

0.45%probability of exploitation in 30 days

36thpercentile

Low risk: more likely to be exploited than 36% of all known CVEs.

References

Patch3

Mitigation2

Third-Party Advisory4

Other references1

openwall.com

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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.