CVE-2021-22893

CVE-2021-22893 is a critical-severity vulnerability in Ivanti Connect Secure with a CVSS 3.x base score of 10.0. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2021-11-03). The underlying weakness is classified as CWE-416.

Key facts

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.

Frequently asked questions

What is CVE-2021-22893?
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.
How severe is CVE-2021-22893?
CVE-2021-22893 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-22893 being actively exploited?
Yes. CVE-2021-22893 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2021-11-03, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2021-22893?
CVE-2021-22893 primarily affects Ivanti Connect Secure. In total, 36 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-22893?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2021-22893 have an EU (EUVD) identifier?
Yes. CVE-2021-22893 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-10025. It is also flagged as exploited in the EUVD (since 2021-11-03).
When was CVE-2021-22893 published?
CVE-2021-22893 was published on 2021-04-23 and last updated on 2026-08-12.

References

Affected products (36)

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