High 8.8Known exploited (CISA KEV)Published Jul 16, 2019

CVE-2019-12991Citrix 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).

Updated under an hour ago (Oct 28, 2026, 3:50 PM ET)

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It affects citrix netscaler_sd-wan and 1 other product. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Mar 25, 2022; federal agencies had to remediate by Apr 15, 2022. Treat that date as your deadline.

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Every CVE for citrix netscaler_sd-wan

Exploited in the last 30 days

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: 8.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-78
Known exploited: Added to CISA KEV Mar 25, 2022; federal remediation due Apr 15, 2022Apply updates per vendor instructions.
EPSS (exploitation in the next 30 days): 74.46% (percentile 99)
Assigned by: mitre
NVD analysis: Analyzed
Record last updated: Oct 21, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

citrix netscaler_sd-wan citrix:netscaler_sd-wan	from 10.0.0 before 10.0.8	NVD
citrix sd-wan citrix:sd-wan	from 10.2.0 before 10.2.3	NVD

References

References

https://www.tenable.com/security/research/tra-2019-32	x-refsource-misc, exploit, third-party-advisory
http://www.securityfocus.com/bid/109133	vdb-entry, x-refsource-bid, broken-link, third-party-advisory
http://packetstormsecurity.com/files/153638/Citrix-SD-WAN-Appliance-10.2.2-Authentication-Bypass-Remote-Command-Execution.html	x-refsource-misc, exploit, third-party-advisory, vdb-entry
https://support.citrix.com/article/CTX251987	x-refsource-misc, vendor-advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-12991	us-government-resource

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.