Quick answers
- Is CVE-2026-88772 exploited in the wild?
- Yes. CVE-2026-88772 is known to be exploited in the wild, first recorded on 27 September 2026. Treat it as urgent.
- How severe is CVE-2026-88772?
- Critical severity, published 27 September 2026.
- Which products and versions are affected?
- Citrix NetScaler ADC before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, before 13.1.37.279 FIPS and NDcPP; Citrix NetScaler Gateway before 14.1-73.37, before 13.1-64.23.
- Is there a fix for CVE-2026-88772?
- 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-2026-88772 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-88772?
- Check whether you run Citrix NetScaler, Citrix NetScaler ADC or Citrix NetScaler Gateway at an affected version. 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.
Technical details
The vulnerability affects Citrix NetScaler ADC and NetScaler Gateway across multiple versions, enabling remote code execution or denial of service. An attacker with network access to the affected appliance can exploit this issue to execute arbitrary code or disrupt service. Patches are available in versions 14.1-73.37, 13.1-64.23, and their FIPS variants.
Affected products
- Citrix NetScaler ADC before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, before 13.1.37.279 FIPS and NDcPP
- Citrix NetScaler Gateway before 14.1-73.37, before 13.1-64.23
Timeline
- 2026-09-27: disclosed