CISA Known Exploited Vulnerability

This vulnerability is actively exploited in the wild and listed in the CISA Known Exploited Vulnerabilities catalog.

Remediation Deadline: Nov 17, 2021

CVE-2021-26084

High

EPSS 94.4%CISA KEVRansomware

Atlassian/Confluence Server and Data Center

Description

Atlassian Confluence Server and Data Server contain an Object-Graph Navigation Language (OGNL) injection vulnerability that may allow an unauthenticated attacker to execute code.

EPSS — Exploit Probability

94.4%

Higher than 100.0% of all CVEs

Required Action

https://nvd.nist.gov/vuln/detail/CVE-2021-26084

Risk Assessment

CRITICAL

In CISA KEV

High EPSS

Ransomware

Details

Severity: High
EPSS: 94.4%
CISA KEV: Yes
Ransomware: Known
Articles: 0

Timeline

Published

Nov 3, 2021

Added to KEV

Nov 3, 2021

Remediation Due

Nov 17, 2021

Affected Product

Atlassian

Confluence Server and Data Center

View all Atlassian CVEs

External Links

NVD (NIST)CVE Details MITRE CVE