High severity · published Sep 18, 2020
CVE-2020-8246
Citrix ADC and Citrix Gateway 13.0 before 13.0-64.35, Citrix ADC and NetScaler Gateway 12.1 before 12.1-58.15, Citrix ADC 12.1-FIPS before 12.1-55.187, Citrix ADC and NetScaler…
7.5
CVSS
1.6%
EPSS
No
On KEV
Description
Citrix ADC and Citrix Gateway 13.0 before 13.0-64.35, Citrix ADC and NetScaler Gateway 12.1 before 12.1-58.15, Citrix ADC 12.1-FIPS before 12.1-55.187, Citrix ADC and NetScaler Gateway 12.0, Citrix ADC and NetScaler Gateway 11.1 before 11.1-65.12, Citrix SD-WAN WANOP 11.2 before 11.2.1a, Citrix SD-WAN WANOP 11.1 before 11.1.2a, Citrix SD-WAN WANOP 11.0 before 11.0.3f, Citrix SD-WAN WANOP 10.2 before 10.2.7b are vulnerable to a denial of service attack originating from the management network.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NA
NetScaler ADC · Citrix
11.1 before 11.1-65.12; 13.0 before 13.0-64.35 · source: NVD
AD
Application Delivery Controller Firmware · Citrix
11.1 before 11.1-65.12; 12.1 before 12.1-58.15; 13.0 before 13.0-64.35 · source: NVD
SW
Sd-wan Wanop · Citrix
10.2 before 10.2.7b; 11.0 before 11.0.3f; 11.1 before 11.1.2a; 11.2 before 11.2.1a · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-8246
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-8246
Vendor Advisory
https://support.citrix.com/article/CTX281474
More from NetScaler ADC
9.8
CVE-2026-88771
A remote code execution vulnerability exists due to improper input validation, which can allow an unauthenticated attacker to execute arbitrary commands
9.8
CVE-2026-19490
NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-19490
9.8
CVE-2026-8452
Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service
9.8
CVE-2026-3055
Insufficient input validation leading to memory overread
9.8
CVE-2025-7775
Memory overflow vulnerability leading to Remote Code Execution and/or Denial of Service
