CVE-2024-5491 Denial of Service
Attackers can cause a denial of service in NetScaler ADC and Gateway, disrupting network availability for Citrix users.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-5491?
CVE-2024-5491 is a high-severity denial of service vulnerability in NetScaler ADC, published on 10 Jul 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Denial of Service in NetScaler ADC and NetScaler Gateway in NetScaler
Which versions are affected by CVE-2024-5491?
It affects 2 products.
Products include Citrix NetScaler ADC, Citrix Netscaler Gateway.
How do I fix CVE-2024-5491?
No fix has been published for CVE-2024-5491 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-2024-5491 being exploited?
There is no known exploitation of CVE-2024-5491 in the wild and no public exploit code.
Other vulnerabilities in NetScaler ADC
- CVE-2023-3519 Citrix NetScaler ADC and NetScaler Gateway Code Injection
- CVE-2026-88771 Citrix NetScaler Improper Input Validation
- CVE-2026-88772 Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer
- CVE-2023-4966 Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow
- CVE-2026-19490 Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel
Sources
Also known as GHSA-p959-c7xj-w3cr.