CVE-2021-22893
Ivanti Pulse Connect Secure Use-After-Free Vulnerability
This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Pulse Connect Secure, fix it now.
CISA required action: Apply updates per vendor instructions.
US federal civilian agencies must remediate by May 3, 2022.
Patch status
No official fix confirmed yet
Until a fix ships, follow the vendor's mitigations and CISA's required action, limit exposure of affected systems, and watch this record for a patch.
Description
Pulse Connect Secure 9.0R3/9.1R1 and higher is vulnerable to an authentication bypass vulnerability exposed by the Windows File Share Browser and Pulse Secure Collaboration features of Pulse Connect Secure that can allow an unauthenticated user to perform remote arbitrary code execution on the Pulse Connect Secure gateway. This vulnerability has been exploited in the wild.
Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.
Affected products
| Product | Vendor | Affected versions | Source |
|---|---|---|---|
| Ivanti Connect Secure / EPMM | Ivanti | 9.0; 9.1 | NVD |
| Pulse Connect Secure | Ivanti | — | KEV |
Sources: NVD = NIST National Vulnerability Database; KEV = CISA Known Exploited Vulnerabilities catalog.
Intelligence timeline
Developments from the last 30 days, newest first.
- CVSS scoredUpdateKEV
CVE-2021-22893 scored CVSS 10.0: Ivanti Pulse Connect Secure, Ivanti Pulse Connect Secure Use-After-Free Vulnerability
CISA lists this as exploited in the wild and known to be used in ransomware campaigns. Unpatched Pulse Connect Secure systems are exposed to active attacks now.
Basis: NIST National Vulnerability Database
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Coverage
We have not published a story about this vulnerability yet.