CVE-2022-35254 Denial of service in Ivanti Connect Secure (ICS), Ivanti Policy Secure (IPS), and Ivanti Neurons for Zero Trust Access Gateway

High 7.5 Published 5 Dec 2022 Updated 24 Apr 2025

Unauthenticated attackers can cause a denial-of-service in Ivanti Connect Secure, Policy Secure, and Neurons for Zero-Trust Access products.

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-2022-35254?

CVE-2022-35254 is a high-severity denial of service vulnerability in Ivanti Connect Secure, published on 5 Dec 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An unauthenticated attacker can cause a denial-of-service to the following products: Ivanti Connect Secure (ICS) in versions prior to 9.1R14.3, 9.1R15.2, 9.1R16.2, and 22.2R4, Ivanti Policy Secure (IPS) in versions prior to 9.1R17 and 22.3R1, and Ivanti Neurons for Zero-Trust Access in versions prior to 22.3R1.

Weakness: CWE-400, CWE-416

Which versions are affected by CVE-2022-35254?

It affects 3 products.

Products include Ivanti Connect Secure, Ivanti Neurons for Zero-Trust Access, Ivanti Policy Secure.

How do I fix CVE-2022-35254?

No fix has been published for CVE-2022-35254 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-2022-35254 being exploited?

There is no known exploitation of CVE-2022-35254 in the wild and no public exploit code.

All Ivanti Connect Secure vulnerabilities

Sources

Also known as GHSA-5g77-9q59-93h8.