CVE-2026-19490
What it is
Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
- In the wild
- CISA lists this as exploited in real attacks. Treat as urgent.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- 2026-09-09 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
- 2026-09-12 Remediation deadlineCISA's due date for federal agencies to fix it
- Last updatedMost recent change to the record
Details
- Published
- Last modified
- Added to CISA KEV
- 2026-09-09
- Exploit probability
- 32.7% · EPSS, next 30 days
- Weakness
- CWE-288
- Record status
- Analyzed
Affected
- Citrix Netscaler Application Delivery Controller < 13.1-37.277
- Citrix Netscaler Application Delivery Controller < 13.1-63.21
- Citrix Netscaler Application Delivery Controller < 14.1-73.32
- Citrix Netscaler Application Delivery Controller ≤ 14.1-73.32
- Citrix Netscaler Gateway < 13.1-63.21
- Citrix Netscaler Gateway < 14.1-73.32
Attack profile CVSS 4.0 · 9.3
- Attack vector
- Network
- Complexity
- Low
- Attack requirements
- None
- Privileges needed
- None
- User interaction
- None
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
