Quick answers
- Is CVE-2026-111342 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-111342 being exploited in the wild.
- How severe is CVE-2026-111342?
- Informational severity, published 13 November 2026.
- Which products and versions are affected?
- Citrix NetScaler ADC; Citrix NetScaler Gateway.
- Is there a fix for CVE-2026-111342?
- 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-2026-111342 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-111342?
- 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.
Technical details
A memory overflow exists in the LDAP authentication handler of NetScaler ADC and Gateway. The vulnerability allows an attacker with network access to send malformed LDAP authentication requests that trigger out-of-bounds memory writes, leading to unpredictable behavior, system crashes, or potential code execution. No authentication or user interaction is required to trigger the flaw.
Affected products
- Citrix NetScaler ADC
- Citrix NetScaler Gateway
Timeline
- 2026-11-13: disclosed