9.8

CVE-2018-6320: ivanti connect_secure Improper Input Validation

CVSS: 9.8v3.0CriticalModified
Published 06-09-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-6320 is a critical (CVSS 9.8) Improper Input Validation vulnerability in ivanti connect_secure. EPSS estimates a 4.08% chance of exploitation in the next 30 days, higher than 90.6% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.0 (NVD)
EPSS score
4.08%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 06-09-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

A vulnerability has been discovered in login.cgi in Pulse Secure Pulse Connect Secure (PCS) 8.1RX before 8.1R12 and 8.3RX before 8.3R2 and Pulse Policy Secure (PPS) 5.2RX before 5.2R9 and 5.4RX before 5.4R2 wherein an http(s) Host header received from the browser is trusted without validation.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

4.08%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

0.00 pp

From 4.08% on 20-09-2026

20-09-202620-10-2026
EPSS score
4.08%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Pulsesecure2 products
Ivanti1 product

2 vendors · 3 products

References

1 links