Juniper Networks Mist Cloud UI: SAML authentication certificate vulnerability.

published 2020-10-16 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-12537

cvss: 8.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits: 0; none known

When Security Assertion Markup Language (SAML) authentication is enabled, Juniper Networks Mist Cloud UI might incorrectly process invalid authentication certificates which could allow a malicious network-based user to access unauthorized data. This issue affects all Juniper Networks Mist Cloud UI versions prior to September 2 2020.

Patch / fix

fixed in 1

Juniper Networks MIST Cloud UI 09/02/2020

Exploit prediction

0.58% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

Juniper Networks MIST Cloud UI

Classification

Weakness

CWE-299 Improper Check for Certificate Revocation
CWE-295 Improper Certificate Validation

References

kb.juniper.net /JSA11072
vendor-advisory

Sources

CVE List CVE-2020-1675
NVD CVE-2020-1675

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary