CVE-2020-11581

Public Exploit

Description

An issue was discovered in Pulse Secure Pulse Connect Secure (PCS) through 2020-04-06. The applet in tncc.jar, executed on macOS, Linux, and Solaris clients when a Host Checker policy is enforced, allows a man-in-the-middle attacker to perform OS command injection attacks (against a client) via shell metacharacters to the doCustomRemediateInstructions method, because Runtime.getRuntime().exec() is used.

Category

8.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 39.32% Top 5%
Vendor Advisory pulsesecure.net
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://git.lsd.cat/g/pulse-host-checker-rce third party advisory exploit
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44426 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-11581?
CVE-2020-11581 has been scored as a high severity vulnerability.
How to fix CVE-2020-11581?
To fix CVE-2020-11581, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-11581 being actively exploited in the wild?
It is possible that CVE-2020-11581 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~39% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.