Exploited· due 2022-05-0310.0criticalCriticalused in ransomware

CVE-2021-22893

Ivanti Connect Secure

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.

Exploitation status

CISA has confirmed this is being exploited in the wild. That is an observation of real attacks, not a prediction.
It is known to have been used in ransomware campaigns.
US federal civilian agencies are required to remediate it by 2022-05-03. That deadline does not bind private companies, but it is a reasonable benchmark for how urgently CISA views it.
A vendor advisory or patch reference has been published.

Required action

Apply updates per vendor instructions.

CISA’s wording, unedited.

What the metrics mean

It is reachable over a network, without needing local access.
For an attacker who can reach it, no special conditions are needed to exploit it.
To exploit it, no account is needed.
Beyond that, no action by a user is required.

Scoring

CVSS: 10.0 (v3.1)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weakness: CWE-287
Assigned by: support@hackerone.com

Dates

Published: 2021-04-23
Last modified: 2026-08-12
Added to KEV: 2021-11-03
Remediation due: 2022-05-03
Sources: CISA KEV, NVD

Affected products

Ivanti Connect Secure9.0, 9.1

As listed in the NVD configuration data. Not a statement about your estate.