CVE-2021-22919
Last modified
CVE-2021-22919 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability has been discovered in Citrix ADC (formerly known as NetScaler ADC) and Citrix Gateway (formerly known as NetScaler Gateway), and Citrix SD-WAN WANOP Edition models 4000-WO, 4100-WO, 5000-WO, and 5100-WO. These vulnerabilities, if exploited, could lead to the limited available disk space on the appliances being fully consumed.. EPSS estimates a 0.94% chance of exploitation in the next 30 days.
Description
A vulnerability has been discovered in Citrix ADC (formerly known as NetScaler ADC) and Citrix Gateway (formerly known as NetScaler Gateway), and Citrix SD-WAN WANOP Edition models 4000-WO, 4100-WO, 5000-WO, and 5100-WO. These vulnerabilities, if exploited, could lead to the limited available disk space on the appliances being fully consumed.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Citrix | Application Delivery Controller Firmware | >= 11.1, < 11.1-65.22 |
| Citrix | Application Delivery Controller Firmware | >= 12.1, < 12.1-62.27 |
| Citrix | Application Delivery Controller Firmware | >= 13.0, < 13.0-82.45 |
| Citrix | Application Delivery Controller Firmware | >= 12.1, < 12.1-55.238 |
| Citrix | Gateway | >= 12.1, < 12.1-62.27 |
| Citrix | Gateway | >= 13.0, < 13.0-82.45 |
| Citrix | Netscaler Gateway | >= 11.1, < 11.1-65.22 |
| Citrix | Sd-Wan Wanop | >= 10.2, < 10.2.9.b |
| Citrix | Sd-Wan Wanop | >= 11.2, < 11.2.3.b |
| Citrix | Sd-Wan Wanop | >= 11.3, < 11.3.2.a |
| Citrix | Sd-Wan Wanop | >= 11.4, < 11.4.0.a |
References
- https://support.citrix.com/article/CTX319135Vendor Advisory
- https://support.citrix.com/article/CTX319135Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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