What is CVE-2018-15749?

CVE-2018-15749 is a medium-severity vulnerability in Pulsesecure Pulse Secure Desktop Client, classified under Use of Externally-Controlled Format String. CVSS score: 5.5/10. Published 2018-09-06.

How severe is CVE-2018-15749?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Pulsesecure Pulse Secure Desktop Client

CVE-2018-15749

The Pulse Secure Desktop (macOS) 5.3RX before 5.3R5 and 9.0R1 has a Format String Vulnerability.

Published 2018-09-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (22.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Pulsesecure Pulse Secure Desktop Client — versions 5.3r1, 5.3r1.1, 5.3r2

Weakness classification (CWE)

CWE-134 — Use of Externally-Controlled Format String

References

kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43877 (Third Party Advisory)

Frequently asked questions

What is CVE-2018-15749?: CVE-2018-15749 is a medium-severity vulnerability in Pulsesecure Pulse Secure Desktop Client, classified under Use of Externally-Controlled Format String. CVSS score: 5.5/10. Published 2018-09-06.
How severe is CVE-2018-15749?: Medium severity. CVSS v3 base score is 5.5 out of 10.