CVE-2021-43940
7.8 · HIGHOverview
CVE-2021-43940 is a high-severity vulnerability affecting atlassian confluence_data_center. It was published on February 15, 2022 and has a CVSS 3.1 base score of 7.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
Affected versions of Atlassian Confluence Server and Data Center allow authenticated local attackers to achieve elevated privileges on the local system via a DLL Hijacking vulnerability in the Confluence installer. This vulnerability only affects installations of Confluence Server and Data Center on Windows. The affected versions are before version 7.4.10, and from version 7.5.0 before 7.12.3.
Remediation
Check the references section for vendor advisories and patches from atlassian. Update confluence_data_center to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| atlassian | confluence_data_center | >= 0, < 7.4.10 | Affected |
| atlassian | confluence_server | >= 0, < 7.4.10 | Affected |
Frequently Asked Questions
What is CVE-2021-43940?
CVE-2021-43940 is a high-severity vulnerability affecting atlassian confluence_data_center. It was published on February 15, 2022 and has a CVSS 3.1 base score of 7.8 (HIGH).
How severe is CVE-2021-43940?
This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-43940?
Check the references section for vendor advisories and patches from atlassian. Update confluence_data_center to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-43940?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-43940 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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