Is CVE-2022-43781 actively exploited?

No active exploitation of CVE-2022-43781 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-43781 be exploited remotely?

Yes. CVE-2022-43781 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-43781?

CVE-2022-43781 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2022-43781

CWE-77Published: November 17, 2022· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

There is a command injection vulnerability using environment variables in Bitbucket Server and Data Center. An attacker with permission to control their username can exploit this issue to execute arbitrary code on the system. This vulnerability can be unauthenticated if the Bitbucket Server and Data Center instance has enabled “Allow public signup”.

NVD Source

Technical Analysis

CVE-2022-43781 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.