CVE-2018-6320 in the critical feed json
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…
published 2018-09-06 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-18081
- cvss
- 9.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.1%
- EPSS 4.1% chance of exploitation in 30 days, percentile 90%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
4.08% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-20 Improper Input Validation
- Technology feeds
References
-
kb.pulsesecure.net
/articles/Pulse_Security_Advisories/SA43877
vendor-advisory
Sources
- CVE List CVE-2018-6320
- NVD CVE-2018-6320
Fencer Intel 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.