CVE-2018-20809
UnknownEPSS 2.73%
Last modified
CVE-2018-20809 is a vulnerability of currently unknown severity. A crafted message can cause the web server to crash with Pulse Secure Pulse Connect Secure (PCS) 8.3RX before 8.3R5 and Pulse Policy Secure 5.4RX before 5.4R5. This is not applicable to PCS 8.1RX.. EPSS estimates a 2.73% chance of exploitation in the next 30 days.
Description
A crafted message can cause the web server to crash with Pulse Secure Pulse Connect Secure (PCS) 8.3RX before 8.3R5 and Pulse Policy Secure 5.4RX before 5.4R5. This is not applicable to PCS 8.1RX.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Ivanti | Connect Secure | 8.3 | R1 |
| Pulsesecure | Pulse Policy Secure | 4.4 | R1.0 |
| Pulsesecure | Pulse Policy Secure | 5.0 | R1.0 |
| Pulsesecure | Pulse Policy Secure | 5.1 | R1.0 |
| Pulsesecure | Pulse Policy Secure | 5.2 | R1.0 |
| Pulsesecure | Pulse Policy Secure | 5.3 | R1.0 |
| Pulsesecure | Pulse Policy Secure | 5.4 | R1 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-20809?
A crafted message can cause the web server to crash with Pulse Secure Pulse Connect Secure (PCS) 8.3RX before 8.3R5 and Pulse Policy Secure 5.4RX before 5.4R5. This is not applicable to PCS 8.1RX.
How severe is CVE-2018-20809?
Severity scoring for CVE-2018-20809 is pending analysis. The EPSS model estimates a 2.73% probability of exploitation in the next 30 days.
How do I fix CVE-2018-20809?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2018
- CVE-2018-20803A user authorized to perform database queries may trigger de…6.5
- CVE-2018-20804A user authorized to perform database queries may trigger de…6.5
- CVE-2018-20805A user authorized to perform database queries may trigger de…6.5
- CVE-2018-20806Phamm (aka PHP LDAP Virtual Hosting Manager) 0.6.8 allows XS…
- CVE-2018-20807An XSS issue has been found in welcome.cgi in Pulse Secure P…
- CVE-2018-20808An XSS issue has been found with rd.cgi in Pulse Secure Puls…
- CVE-2018-2081Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultI…
- CVE-2018-20810Session data between cluster nodes during cluster synchroniz…
- CVE-2018-20811A hidden RPC service issue was found with Pulse Secure Pulse…
- CVE-2018-20812An information exposure issue where IPv6 DNS traffic would b…
- CVE-2018-20813An input validation issue has been found with login_meeting.…
- CVE-2018-20814An XSS issue was found with Psaldownload.cgi in Pulse Secure…
Are you affected by CVE-2018-20809?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST