CVE-2020-11580
CVSS v3
9.1
CRITICAL
EPSS Score
1.1 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2020-04-06
Frequently asked questions
What is CVE-2020-11580?
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.
Is CVE-2020-11580 actively exploited?
Active exploitation of CVE-2020-11580 has not been confirmed. Its EPSS score was 1.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2020-11580?
CVE-2020-11580 has a CVSS v3 base score of 9.1 (CRITICAL severity).
Is CVE-2020-11580 affecting your environment?
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