CVE-2020-8195
Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
Improper input validation in Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18 and Citrix SDWAN WAN-OP versions before 11.1.1a, 11.0.3d and 10.2.7 resulting in limited information disclosure to low privileged users.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 33.03% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 3 November 2021 · due 3 May 2022
- Weakness
- CWE-20, CWE-22
- Affected
- citrix/application delivery controller firmware · citrix/netscaler gateway firmware · citrix/gateway firmware · citrix/sd-wan wanop · citrix/gateway plug-in for linux
- Source
- support@hackerone.com
EPSS 33.0% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2020-8195
References
- http://packetstormsecurity.com/files/160047/Citrix-ADC-NetScaler-Local-File-Inclusion.htmlExploit, Third Party Advisory, VDB Entry
- https://support.citrix.com/article/CTX276688Vendor Advisory
- http://packetstormsecurity.com/files/160047/Citrix-ADC-NetScaler-Local-File-Inclusion.htmlExploit, Third Party Advisory, VDB Entry
- https://support.citrix.com/article/CTX276688Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-8195US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.