NetScaler ADC and Gateway
CVE-2019-12991: SD-WAN and NetScaler 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 5 of 6).
Published
ExploitedYes, in CISA KEVAdded 25 Mar 2022
Ransomware useNot reportedPer CISA
SeverityHIGHCVSS 3.1 8.8
EPSS74%Chance of exploitation in 30 days
Public exploitNot tracked
FixNot yet
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| n/a n/a | See the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
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 5 of 6).
Exploitation
CISA lists this CVE as exploited in the wild since 25 Mar 2022.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 11 Oct 2026.