CVE-2023-3519: Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability
CVE-2023-3519 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2023-07-19
Citrix NetScaler ADC and NetScaler Gateway are vulnerable to unauthenticated remote code execution via code injection. This vulnerability allows an attacker to execute arbitrary code on the target appliance without requiring prior authentication.
Yes. CVE-2023-3519 is known to be exploited in the wild, first recorded on 19 July 2023. Treat it as urgent.
How severe is CVE-2023-3519?
Critical severity, with a CVSS score of 9.8, published 19 July 2023.
Which products and versions are affected?
Citrix NetScaler ADC 13.1 before 13.1-49.13, 13.0 before 13.0-91.13, 12.1 before 12.1-55.297, 11.1-65.22; Citrix NetScaler Gateway 13.1 before 13.1-49.13, 13.0 before 13.0-91.13.
Is there a fix for CVE-2023-3519?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2023-3519 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2023-3519?
Check whether you run Citrix NetScaler ADC or Citrix NetScaler Gateway. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Citrix NetScaler ADC 13.1 before 13.1-49.13, 13.0 before 13.0-91.13, 12.1 before 12.1-55.297, 11.1-65.22
Citrix NetScaler Gateway 13.1 before 13.1-49.13, 13.0 before 13.0-91.13
Timeline
2023-07-19: disclosed
2023-07-19: advisory
2023-07-19: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
2023-07-19: exploited: Reported as exploited in the wild at time of publication