CVE-2021-22894: Ivanti Pulse Connect Secure Collaboration Suite Buffer Overflow Vulnerability
CVE-2021-22894 · Severity: critical · CVSS 8.8 · Exploited in the wild · Published 2021-11-03
A buffer overflow vulnerability in Ivanti Pulse Connect Secure (formerly Pulse Secure) allows a remote authenticated attacker to execute arbitrary code as the root user. The exploit is triggered via a maliciously crafted meeting room within the Collaboration Suite.
Quick answers
Is CVE-2021-22894 exploited in the wild?
Yes. CVE-2021-22894 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2021-22894?
Critical severity, with a CVSS score of 8.8, published 3 November 2021.
Which products and versions are affected?
Ivanti Pulse Connect Secure before 9.1R11.4.
Is there a fix for CVE-2021-22894?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2021-22894 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2021-22894?
Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Ivanti Pulse Connect Secure before 9.1R11.4
Timeline
2021-11-03: disclosed
2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities catalog.