CVE DATABASE / CVE-2019-12991
CVE-2019-12991
Citrix SD-WAN and NetScaler Command Injection Vulnerability
CVSS 8.8 · HIGH
⚠ CISA KEV — ACTIVELY EXPLOITED
On the CISA KEV catalog
Confirmed exploited in the wild. Added 2022-03-25.
Federal remediation due 2022-04-15.
Required action: Apply updates per vendor instructions.
Summary
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).
CVSS 3.1 breakdown
| Base score | 8.8 (HIGH) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Attack vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity | HIGH |
| Availability | HIGH |
Weakness type (CWE)
Affected products
Citrix netscaler sd-wanCitrix sd-wan
Check this CVE live
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References
- http://packetstormsecurity.com/files/153638/Citrix-SD-WAN-Appliance-10.2.2-Authentication-Bypass-Remote-Command-Execution.html
- http://www.securityfocus.com/bid/109133
- https://support.citrix.com/article/CTX251987
- https://www.tenable.com/security/research/tra-2019-32
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-12991
Data: NIST NVD + CISA KEV. NVD last modified 2025-11-06. Always verify against the vendor advisory before acting.