Improper input validation in Citrix ADC, Citrix Gateway, Citrix SDWAN WAN-OP
Priority CRITICAL 86Exploited in the wildCWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.
Summary
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.
Why it matters now
Exploitation Active In CISA KEV since 2021-11-03CISA due date 2022-05-03
EPSS 0.33029 98th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Citrix ADC, Citrix Gateway, Citrix SDWAN WAN-OP | Citrix ADC and Citrix Gateway 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 11.1.1a, 11.0.3d and 10.2.7 | — | No fix listed | CNA |
- Citrix ADC, Citrix Gateway, Citrix SDWAN WAN-OP Vendor— Affected Citrix ADC and Citrix Gateway 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 11.1.1a, 11.0.3d and 10.2.7 Fixed in — No fix listed CNA
CPE configurations NVD · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:* | 10.5 to before 10.5-70.18; 11.1 to before 11.1-64.14; 12.0 to before 12.0-63.21; 12.1 to before 12.1-57.18; 13.0 to before 13.0-58.30 | Vulnerable | Citrix |
| cpe:2.3:o:citrix:netscaler_gateway_firmware:*:*:*:*:*:*:*:* | 10.5 to before 10.5-70.18; 11.1 to before 11.1-64.14; 12.0 to before 12.0-63.21; 12.1 to before 12.1-57.18 | Vulnerable | Citrix |
| cpe:2.3:o:citrix:gateway_firmware:*:*:*:*:*:*:*:* | 13.0 to before 13.0-58.30 | Vulnerable | Citrix |
| cpe:2.3:o:citrix:sd-wan_wanop:*:*:*:*:*:*:*:* | 10.2 to before 10.2.7; 11.0 to before 11.0.3d; 11.1 to before 11.1.1a | Vulnerable | Citrix |
| cpe:2.3:h:citrix:4000-wo:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Citrix |
| cpe:2.3:h:citrix:4100-wo:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Citrix |
| cpe:2.3:h:citrix:5000-wo:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Citrix |
| cpe:2.3:h:citrix:5100-wo:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Citrix |
| cpe:2.3:a:citrix:gateway_plug-in_for_linux:*:*:*:*:*:*:*:* | before 1.0.0.137 | Vulnerable | Citrix |
- cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:* Versions 10.5 to before 10.5-70.18; 11.1 to before 11.1-64.14; 12.0 to before 12.0-63.21; 12.1 to before 12.1-57.18; 13.0 to before 13.0-58.30 Vulnerable ·Citrix
- cpe:2.3:o:citrix:netscaler_gateway_firmware:*:*:*:*:*:*:*:* Versions 10.5 to before 10.5-70.18; 11.1 to before 11.1-64.14; 12.0 to before 12.0-63.21; 12.1 to before 12.1-57.18 Vulnerable ·Citrix
- cpe:2.3:o:citrix:gateway_firmware:*:*:*:*:*:*:*:* Versions 13.0 to before 13.0-58.30 Vulnerable ·Citrix
- cpe:2.3:o:citrix:sd-wan_wanop:*:*:*:*:*:*:*:* Versions 10.2 to before 10.2.7; 11.0 to before 11.0.3d; 11.1 to before 11.1.1a Vulnerable ·Citrix
- cpe:2.3:h:citrix:4000-wo:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Citrix
- cpe:2.3:h:citrix:4100-wo:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Citrix
- cpe:2.3:h:citrix:5000-wo:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Citrix
- cpe:2.3:h:citrix:5100-wo:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Citrix
- cpe:2.3:a:citrix:gateway_plug-in_for_linux:*:*:*:*:*:*:*:* Versions before 1.0.0.137 Vulnerable ·Citrix
Remediation
No fixed version listed by the sources yet.
Timeline
- 2021-11-03 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2020-8195
- 2026-10-03 Alias added: GHSA-jwjc-9cxc-87j8
References
More Citrix Application Delivery Controller Firmware vulnerabilities
- TI-2022-10528 Unauthenticated remote arbitrary code execution in Citrix Gateway, Citrix ADC KEVCVSS 3.1CRITICAL 9.8
- TI-2019-14254 An issue was discovered in Citrix Application Delivery Controller (ADC) and Gateway 10.5… KEVCVSS 3.1CRITICAL 9.8
- TI-2020-06611 Improper access control in Citrix ADC, Citrix Gateway, Citrix SDWAN WAN-OP KEVCVSS 3.1MEDIUM 6.5
- TI-2020-06614 Improper access control in Citrix ADC, Citrix Gateway, Citrix SDWAN WAN-OP KEVCVSS 3.1MEDIUM 4.3
- TI-2018-05232 The AppFirewall functionality in Citrix NetScaler Application Delivery Controller and… CVSS 3.0CRITICAL 9.8
- TI-2020-06609 Cross-site scripting in Citrix ADC, Citrix Gateway, Citrix SDWAN WAN-OP CVSS 3.1MEDIUM 6.1
Sources
- CVE-2020-8195 · CVE Program
- CVE-2020-8195 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-jwjc-9cxc-87j8 · GitHub Advisory Database · CC BY 4.0
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