Is CVE-2020-27672 in the CISA KEV catalog?

No. CVE-2020-27672 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-27672?

CVE-2020-27672 has a CVSS v3 base score of 7.0 (HIGH).

What is the EPSS score for CVE-2020-27672?

CVE-2020-27672 has an EPSS score of 0.26% (17th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-27672?

Upgrade xen on debian 11 to 4.14.0+80-gd101b417b7-1 or later.

CVE & CISA-KEV Catalog

CVE-2020-27672

HIGH

7.0

CVSS v3

NVD

Description

An issue was discovered in Xen through 4.14.x allowing x86 guest OS users to cause a host OS denial of service, achieve data corruption, or possibly gain privileges by exploiting a race condition that leads to a use-after-free involving 2MiB and 1GiB superpages.

CWE-362Race Condition CWE-416Use After Free

How to fix

Remediation Available

xenDebian

Fixed in:4.14.0+80-gd101b417b7-1CVE-2020-27672

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

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.26%probability of exploitation in 30 days

17thpercentile

Low risk: more likely to be exploited than 17% of all known CVEs.

References

Patch2

Third-Party Advisory5

Other references1

lists.fedoraproject.org

Related Vulnerabilities

Other CWE-362 (Race Condition) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-6387	High	8.1	100%	-	Fix
CVE-2023-36884	High	7.5	99%	KEV + Ransom	Fix
CVE-2018-15473	Medium	5.3	99%	-	Fix
CVE-2024-27983	High	8.2	87%	-	Fix
CVE-2014-0226	Medium	6.8	86%	-	Fix
CVE-2016-5195	High	7.0	84%	KEV	Fix

Embed a live status badge for CVE-2020-27672

Markdown

[![CVE-2020-27672](https://tridentstack.com/cve/badge/CVE-2020-27672.svg)](https://tridentstack.com/cve/CVE-2020-27672)

HTML

<a href="https://tridentstack.com/cve/CVE-2020-27672"><img src="https://tridentstack.com/cve/badge/CVE-2020-27672.svg" alt="CVE-2020-27672"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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.