CVE-2018-20812

Name: CVE-2018-20812
Creator: NVD / NIST
Published: 2019-06-28T18:15:11.143+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.11%

Last modified Jun 17, 2026

CVE-2018-20812 is a vulnerability of currently unknown severity. An information exposure issue where IPv6 DNS traffic would be sent outside of the VPN tunnel (when Traffic Enforcement was enabled) exists in Pulse Secure Pulse Secure Desktop 9.0R1 and below. This is applicable only to dual-stack (IPv4/IPv6) endpoints.. EPSS estimates a 1.11% chance of exploitation in the next 30 days.

Description

An information exposure issue where IPv6 DNS traffic would be sent outside of the VPN tunnel (when Traffic Enforcement was enabled) exists in Pulse Secure Pulse Secure Desktop 9.0R1 and below. This is applicable only to dual-stack (IPv4/IPv6) endpoints.

Metrics

EPSS Probability

1.11%

61.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions	Update
Pulsesecure	Pulse Secure Desktop Client	4.0	R1.0
Pulsesecure	Pulse Secure Desktop Client	5.1	R1.0
Pulsesecure	Pulse Secure Desktop Client	5.1r	3.2
Pulsesecure	Pulse Secure Desktop Client	5.3	R1
Pulsesecure	Pulse Secure Desktop Client	9.0	R1

References

https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43877/Vendor Advisory
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43877/Vendor Advisory

Timeline

Published: Jun 28, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-20812?

How severe is CVE-2018-20812?

Severity scoring for CVE-2018-20812 is pending analysis. The EPSS model estimates a 1.11% probability of exploitation in the next 30 days.

How do I fix CVE-2018-20812?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-20812?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST