CVE-2023-4967
HIGHCVSS 7.5/10EPSS 0.88%
Last modified
CVE-2023-4967 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Denial of Service in NetScaler ADC and NetScaler Gateway when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA Virtual Server. EPSS estimates a 0.88% chance of exploitation in the next 30 days.
Description
Denial of Service in NetScaler ADC and NetScaler Gateway when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA Virtual Server
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Citrix | Netscaler Application Delivery Controller | >= 13.0, < 13.0-92.19 |
| Citrix | Netscaler Application Delivery Controller | >= 13.1, < 13.1-49.15 |
| Citrix | Netscaler Application Delivery Controller | >= 14.1, < 14.1-8.50 |
| Citrix | Netscaler Gateway | >= 13.0, < 13.0-92.19 |
| Citrix | Netscaler Gateway | >= 13.1, < 13.1-49.15 |
| Citrix | Netscaler Gateway | >= 14.1, < 14.1-8.50 |
| Citrix | Netscaler Application Delivery Controller | >= 12.1, <= 12.1-55.300 |
| Citrix | Netscaler Application Delivery Controller | >= 13.1, <= 13.1-37.164 |
References
- https://support.citrix.com/article/CTX579459/Vendor Advisory
- https://support.citrix.com/article/CTX579459/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-4967?
Denial of Service in NetScaler ADC and NetScaler Gateway when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA Virtual Server
How severe is CVE-2023-4967?
CVE-2023-4967 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.88% probability of exploitation in the next 30 days.
How do I fix CVE-2023-4967?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2023-4967?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST