What’s Vulnerable › Vulnerabilities

CVE-2018-20810

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-06-28 · updated 2026-06-17
• Weakness: CWE-326

Description

Session data between cluster nodes during cluster synchronization is not properly encrypted in Pulse Secure Pulse Connect Secure (PCS) 8.3RX before 8.3R2 and Pulse Policy Secure (PPS) 5.4RX before 5.4R2. This is not applicable to PCS 8.1RX, PPS 5.2RX, or stand-alone devices.

Affected products

• Ivanti Connect Secure (Pulse Secure): 8.3-r1
• Pulsesecure Pulse Policy Secure: 5.4-r1

References

• https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43877/
• https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43877/

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