Which products and versions are affected by CVE-2021-22893?

Affected: Connect Secure (Ivanti) versions 9.0, 9.0-r1, 9.0-r2, 9.0-r2.1, 9.0-r3, 9.0-r3.1, 9.0-r3.2, 9.0-r3.3; Pulse Connect Secure versions >= PCS 9.0R3 or above, PCS 9.1R1 and above. The full list is in the CVE brief.

Is CVE-2021-22893 being exploited in the wild?

It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Apr 20, 2021 and is known to be used in ransomware campaigns.

Is CVE-2021-22893 in the CISA KEV catalog?

Yes. It was added on Nov 3, 2021 with a federal remediation due date of May 3, 2022.

Is there a public exploit for CVE-2021-22893?

Public exploit code is available.

Is there a fix for CVE-2021-22893?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2021-22893 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2021-22893

CriticalExploitedPublic exploit

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…

Published Apr 21, 2021 · Updated Aug 12, 2026

Key Facts

Patch immediately

CVE-2021-22893 is a critical-severity vulnerability (CVSS 10.0 v3.1) affecting Connect Secure (Ivanti), Pulse Connect Secure.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Apr 20, 2021 and is known to be used in ransomware campaigns. Public exploit code is available.
EPSS estimates a 47% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

10.0

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

47%

Higher than 98.8% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings, used by ransomware

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2021-22893 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
CISA KEV	Nov 3, 2021	May 3, 2022	Known
Industry KEV feed	Apr 20, 2021	May 3, 2022	Known
CIRCL KEV	Nov 3, 2021	May 3, 2022	Known
ENISA EUVD	Nov 3, 2021	n/a	Not reported

Required action: Apply updates per vendor instructions.

Affected Products

37 affected entries in total

Product	Affected versions	Fixed in
Connect SecureIvanti	9.0, 9.0-r1, 9.0-r2, 9.0-r2.1, 9.0-r3, 9.0-r3.1, 9.0-r3.2, 9.0-r3.3	n/a
Pulse Connect Secure	>= PCS 9.0R3 or above, PCS 9.1R1 and above	n/a

Timeline

Added to Industry KEV feed
Apr 20, 2021
Publicly disclosed
Apr 21, 2021
Added to CISA KEV
Nov 3, 2021
Added to CIRCL KEV
Nov 3, 2021
Added to ENISA EUVD
Nov 3, 2021
Last updated
Aug 12, 2026

Weakness Type

CWE-287 Improper Authentication
CWE-416 Use After Free

References

12 more references in the full CVE brief

FAQ

Common Questions.

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 gat…
Affected: Connect Secure (Ivanti) versions 9.0, 9.0-r1, 9.0-r2, 9.0-r2.1, 9.0-r3, 9.0-r3.1, 9.0-r3.2, 9.0-r3.3; Pulse Connect Secure versions >= PCS 9.0R3 or above, PCS 9.1R1 and above. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Apr 20, 2021 and is known to be used in ransomware campaigns.
Yes. It was added on Nov 3, 2021 with a federal remediation due date of May 3, 2022.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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