CVE-2016-4786 Denial of service in n/a
Remote attackers can cause a denial of service via CPU consumption in Pulse Connect Secure appliances, requiring an upgrade to mitigate.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2016-4786?
CVE-2016-4786 is a high-severity denial of service vulnerability in Ivanti Connect Secure, published on 26 May 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Pulse Connect Secure (PCS) 8.2 before 8.2r1, 8.1 before 8.1r3, 8.0 before 8.0r11, and 7.4 before 7.4r13.4 allow remote attackers to cause a denial of service (CPU consumption) via unspecified vectors.
Which versions are affected by CVE-2016-4786?
It affects 2 products.
Products include Ivanti Connect Secure, Pulsesecure Pulse Connect Secure.
How do I fix CVE-2016-4786?
No fix has been published for CVE-2016-4786 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2016-4786 being exploited?
There is no known exploitation of CVE-2016-4786 in the wild and no public exploit code.
Other vulnerabilities in Ivanti Connect Secure
- CVE-2021-22893 Ivanti Pulse Connect Secure Use-After-Free
- CVE-2019-11510 Ivanti Pulse Connect Secure Arbitrary File Read
- CVE-2024-21887 Ivanti Connect Secure and Policy Secure Command Injection
- CVE-2025-22457 Ivanti Connect Secure, Policy Secure, and ZTA Gateways Stack-Based Buffer Overflow
- CVE-2025-0282 Ivanti Connect Secure, Policy Secure, and ZTA Gateways Stack-Based Buffer Overflow
Sources
Also known as GHSA-8w55-xhm5-jh9r.