CVE-2020-11580

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-04-06 · updated 2026-06-17
Weakness: CWE-295

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, accepts an arbitrary SSL certificate.

Affected products

Ivanti Connect Secure (Pulse Secure): through 2020-04-06
Pulsesecure Pulse Policy Secure: through 2020-04-06

References

https://git.lsd.cat/g/pulse-host-checker-rce
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44426
https://git.lsd.cat/g/pulse-host-checker-rce
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44426

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