CVE-2021-22919: citrix application_delivery_controller
Vulnerability summary
CVE-2021-22919 is a high (CVSS 7.5) vulnerability in citrix application_delivery_controller. EPSS estimates a 0.94% chance of exploitation in the next 30 days, higher than 60.2% of scored vulnerabilities.
Timeline
- 05-08-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
0.94%
Chance of exploitation in the next 30 days
Percentile
60%
Versus all other CVEs
30-day change
0.00 pp
From 0.94% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Citrix4 products
- application_delivery_controller≥ 11.1, < 11.1-65.22 | ≥ 12.1, < 12.1-62.27 | ≥ 13.0, < 13.0-82.45 | ≥ 12.1, < 12.1-55.238
- gateway≥ 12.1, < 12.1-62.27 | ≥ 13.0, < 13.0-82.45
- netscaler_gateway≥ 11.1, < 11.1-65.22
- sd-wan_wanop≥ 10.2, < 10.2.9.b | ≥ 11.2, < 11.2.3.b | ≥ 11.3, < 11.3.2.a | ≥ 11.4, < 11.4.0.a
1 vendor · 4 products