---
id: "CVE-2019-12989"
kind: "vulnerability"
aliases: ["CVE-2019-12989"]
title: "Citrix SD-WAN and NetScaler: Citrix SD-WAN and NetScaler SQL Injection Vulnerability"
severity: "critical"
cvss: 9.8
epss: 0.94879
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "Citrix SD-WAN and NetScaler", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["appliance", "citrix", "exploited", "infrastructure", "netscaler", "sd-wan"]
not_affected_if: ["unknown"]
published_at: "2019-07-16T18:15:12+00:00"
first_seen_at: "2026-10-23T19:11:52+00:00"
updated_at: "2026-10-23T21:57:35+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2019-12989", "first_seen_at": "2026-10-23T19:11:52+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2019-12989", "first_seen_at": "2026-10-23T19:13:44+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-12989", "first_seen_at": "2026-10-23T21:57:35+00:00"}]
---

# Citrix SD-WAN and NetScaler: Citrix SD-WAN and NetScaler SQL Injection Vulnerability

Citrix SD-WAN and NetScaler SD-WAN contain a SQL injection flaw. Attackers can send crafted input that the appliance passes into database queries, which can expose or alter data.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Citrix SD-WAN and NetScaler affected ? fixed ?

## Fix

Apply the vendor updates per Citrix instructions; CISA KEV lists this as known exploited and requires updates.

## Timeline

- 2026-10-23T19:11:52+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2019-12989
- 2026-10-23T19:13:44+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2019-12989
- 2026-10-23T21:57:35+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2019-12989

## From the sources

Citrix SD-WAN and NetScaler SD-WAN allow SQL Injection.

CISA required action: Apply updates per vendor instructions.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_