CISA KEVRansomware Use Known

CVE-2021-26084

Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OGNL) Injection Vulnerability

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

VendorAtlassian

ProductConfluence Server and Data Center

EPSS100.0%

Added to KEVNov 03, 2021

Remediation DueNov 17, 2021

Known Ransomware UseYes

CWECWE-917

Required Action

Apply updates per vendor instructions.

From Disclosure to Action

Know how quickly you need to move.

For CVE-2021-26084, added to the catalogue on Nov 03, 2021 with a remediation deadline of Nov 17, 2021.

Added to KEVNov 03, 2021

Seraph AlertSame day

Remediation DueNov 17, 2021

ValidationOngoing

Overdue1806 days overdue

Recommended action: Apply vendor remediation guidance.

Seraph Context

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Exploitation Context

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References

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

More from Atlassian in the KEV catalogue.

CVE-2021-26086Jira Server and Data CenterAdded Nov 12, 2024 CVE-2023-22527Confluence Data Center and ServerAdded Jan 24, 2024 CVE-2023-22518Confluence Data Center and ServerAdded Nov 07, 2023

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