CVE-2024-8534 Memory safety vulnerability leading to memory corruption and Denial of Service

What is CVE-2024-8534?

CVE-2024-8534 is a high-severity memory corruption vulnerability in NetScaler ADC, published on 12 Nov 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Memory safety vulnerability leading to memory corruption and Denial of Service in NetScaler ADC and Gateway if the appliance must be configured as a Gateway (VPN Vserver) with RDP Feature enabled OR the appliance must be configured as a Gateway (VPN Vserver) and RDP Proxy Server Profile is created and set to Gateway (VPN Vserver) OR the appliance must be configured as a Auth Server (AAA Vserver) with RDP Feature enabled

Weakness: CWE-787, CWE-119

Which versions are affected by CVE-2024-8534?

It affects 2 products.

Products include Citrix NetScaler ADC, Citrix Netscaler Gateway.

How do I fix CVE-2024-8534?

No fix has been published for CVE-2024-8534 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2024-8534 being exploited?

There is no known exploitation of CVE-2024-8534 in the wild and no public exploit code.

Other vulnerabilities in NetScaler ADC

• CVE-2023-3519 Citrix NetScaler ADC and NetScaler Gateway Code Injection Exploited Critical 9.8
• CVE-2026-88771 Citrix NetScaler Improper Input Validation Exploited Critical 9.5
• CVE-2026-88772 Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Exploited Critical 9.5
• CVE-2023-4966 Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Exploited Critical 9.4
• CVE-2026-19490 Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel Exploited Critical 9.3

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-33mv-fjxj-2mx6.