known ransomware use

Atlassian Crowd and Crowd Data Center Remote Code Execution Vulnerability

Added to KEV
2021-11-03
Federal due date
2022-05-03
Vendor
Atlassian
Product
Crowd and Crowd Data Center
EPSS
100.0th percentile (score 0.944, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Known
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2019-11580

CISA short description

Atlassian Crowd and Crowd Data Center contain a remote code execution vulnerability resulting from a pdkinstall development plugin being incorrectly enabled in release builds.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.