Is CVE-2021-43953 in the CISA KEV catalog?

No. CVE-2021-43953 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-43953?

CVE-2021-43953 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2021-43953?

CVE-2021-43953 has an EPSS score of 0.47% (37th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-43953?

Upgrade Jira Software Long Term Support to 8.20.5 or later.

CVE & CISA-KEV Catalog

CVE-2021-43953

MEDIUM

4.3

CVSS v3

NVD

Description

Affected versions of Atlassian Jira Server and Data Center allow unauthenticated remote attackers to toggle the Thread Contention and CPU monitoring settings via a Cross-Site Request Forgery (CSRF) vulnerability in the /secure/admin/ViewInstrumentation.jspa endpoint. The affected versions are before version 8.13.16, and from version 8.14.0 before 8.20.5.

CWE-352Cross-Site Request Forgery

How to fix

Remediation Available

Jira Software Long Term SupportWindows application

Affected:8.14.0 8.20.5Fixed in:8.20.5Atlassian

Affected:8.13.16Fixed in:8.13.16Atlassian

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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

0.47%probability of exploitation in 30 days

37thpercentile

Low risk: more likely to be exploited than 37% of all known CVEs.

References

Vendor Advisory1

jira.atlassian.com

Related Vulnerabilities

Other CWE-352 (Cross-Site Request Forgery) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2016-6277	High	8.8	100%	KEV	-
CVE-2014-0054	Medium	6.8	91%	-	Fix
CVE-2013-6429	Medium	6.8	90%	-	Fix
CVE-2022-41622	High	8.8	88%	-	-
CVE-2018-7700	High	8.8	75%	-	-
CVE-2015-2295	Medium	6.8	66%	-	-

Embed a live status badge for CVE-2021-43953

Markdown

[![CVE-2021-43953](https://tridentstack.com/cve/badge/CVE-2021-43953.svg)](https://tridentstack.com/cve/CVE-2021-43953)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-43953"><img src="https://tridentstack.com/cve/badge/CVE-2021-43953.svg" alt="CVE-2021-43953"></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.