What is CVE-2018-20307?

CVE-2018-20307 is a medium-severity vulnerability in Pulsesecure Virtual Traffic Manager, classified under Information Disclosure. CVSS score: 4.3/10. Published 2018-12-20.

How severe is CVE-2018-20307?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Information disclosure in Pulsesecure Virtual Traffic Manager

CVE-2018-20307

Pulse Secure Virtual Traffic Manager 9.9 versions prior to 9.9r2 and 10.4r1 allow a remote authenticated user to obtain sensitive historical activity information by leveraging incorrect permission validation.

Vulnerability class: Information Disclosure

Published 2018-12-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.008 (56.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Pulsesecure Virtual Traffic Manager — versions 9.9, 10.4, 17.2

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730 (Vendor Advisory)

Frequently asked questions

What is CVE-2018-20307?: CVE-2018-20307 is a medium-severity vulnerability in Pulsesecure Virtual Traffic Manager, classified under Information Disclosure. CVSS score: 4.3/10. Published 2018-12-20.
How severe is CVE-2018-20307?: Medium severity. CVSS v3 base score is 4.3 out of 10.