# CVE-2026-107407: Citrix NetScaler ADC memory overflow in SMPP traffic

Source: https://junglewise.ai/threats/cve-2026-107407-memory-overflow-in-smpp-traffic-can-lead-to-unpredictable-or  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-13. Updated: 2026-11-13  
License: CC BY 4.0 with a link back

CVE-2026-107407 · Severity: info · Published 2026-11-13

NetScaler ADC is a load balancer and application delivery controller used to manage network traffic. A memory overflow vulnerability in SMPP (Short Message Peer-to-Peer) traffic processing can cause the application to behave unpredictably, crash, or stop responding. An attacker with network access to SMPP traffic could trigger a denial of service condition.

Technologies: [Citrix NetScaler ADC](https://junglewise.ai/threats/technologies/netscaler-adc), [Citrix NetScaler Gateway](https://junglewise.ai/threats/technologies/gateway). Vendors: [Citrix](https://junglewise.ai/threats/vendors/citrix).

## Quick answers

**Is CVE-2026-107407 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-107407 being exploited in the wild.

**How severe is CVE-2026-107407?** Informational severity, published 13 November 2026.

**Which products and versions are affected?** Citrix NetScaler ADC; Citrix NetScaler Gateway.

**Is there a fix for CVE-2026-107407?** 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-2026-107407 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-107407?** 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 flaw exists in the SMPP traffic processing module of NetScaler ADC and NetScaler Gateway. The vulnerability can be triggered by sending specially crafted SMPP traffic over the network. Exploitation results in unpredictable behavior, erroneous processing, or denial of service; no code execution or privilege escalation is indicated.

## Affected products

- Citrix NetScaler ADC
- Citrix NetScaler Gateway

## Timeline

- 2026-11-13: disclosed

## References

- [https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697305](https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697305)

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