Is CVE-2018-19961 in the CISA KEV catalog?

No. CVE-2018-19961 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-19961?

CVE-2018-19961 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2018-19961?

CVE-2018-19961 has an EPSS score of 0.41% (33th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-19961?

Upgrade xen on debian 11 to 4.11.1-1 or later.

CVE & CISA-KEV Catalog

CVE-2018-19961

HIGH

7.8

CVSS v3

NVD

Description

An issue was discovered in Xen through 4.11.x on AMD x86 platforms, possibly allowing guest OS users to gain host OS privileges because TLB flushes do not always occur after IOMMU mapping changes.

CWE-459

How to fix

Remediation Available

xenDebian

Fixed in:4.11.1-1CVE-2018-19961

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 ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.41%probability of exploitation in 30 days

33rdpercentile

Low risk: more likely to be exploited than 33% of all known CVEs.

References

Patch1

xenbits.xen.org

Third-Party Advisory3

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 2024-11-21.