Is CVE-2021-43951 actively exploited?

No active exploitation of CVE-2021-43951 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-43951 be exploited remotely?

Yes. CVE-2021-43951 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-43951?

CVE-2021-43951 has a CVSS score of 4.3 (MEDIUM).

HOME VULNERABILITIESCVE-2021-43951

MEDIUM

CVE-2021-43951

CWE-200Published: January 10, 2022· Updated: Jun 17, 2026

4.3

CVSS v3.1

Official Description

Affected versions of Atlassian Jira Service Management Server and Data Center allow authenticated remote attackers to view object import configuration details via an Information Disclosure vulnerability in the Create Object type mapping feature. The affected versions are before version 4.21.0.

NVD Source

Technical Analysis

CVE-2021-43951 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.