CVE-2023-6548 Citrix NetScaler ADC and NetScaler Gateway Code Injection
Low-privileged attackers with management interface access can execute arbitrary code on NetScaler ADC and Gateway devices.
- Exploited in the wild
- Since 17 Jan 2024
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-6548?
CVE-2023-6548 is a medium-severity code injection vulnerability in Cloud Software Group NetScaler ADC, published on 17 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improper Control of Generation of Code ('Code Injection') in NetScaler ADC and NetScaler Gateway allows an attacker with access to NSIP, CLIP or SNIP with management interface to perform Authenticated (low privileged) remote code execution on Management Interface.
Weakness: CWE-94
Which versions are affected by CVE-2023-6548?
It affects 2 products.
Products include Citrix NetScaler ADC, Citrix Netscaler Gateway.
How do I fix CVE-2023-6548?
No fix has been published for CVE-2023-6548 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 24 Jan 2024.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2023-6548 being exploited?
Yes. Attackers have exploited CVE-2023-6548 in the wild since at least 17 Jan 2024.
Other vulnerabilities in Cloud Software Group 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-w4rw-v3mm-hj8h.