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 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.

Published: 2020-09-18 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-8246 is rated Moderate Risk (52.1/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.51%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2020-8246

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 0.60% 0.51% -0.10%
2 2025-03-29 0.51% 0.60% +0.10%
3 2025-03-17 — 0.51% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-8246

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2020-8246

Affected software / configurations for CVE-2020-8246

Vendor Product Version Raw CPE
citrix application_delivery_controller_firmware >= 11.1, < 11.1-65.12 cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:*
citrix application_delivery_controller_firmware >= 12.1, < 12.1-58.15 cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:*
citrix application_delivery_controller_firmware >= 13.0, < 13.0-64.35 cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:*
citrix gateway >= 11.1, < 11.1-65.12 cpe:2.3:a:citrix:gateway:*:*:*:*:*:*:*:*
citrix gateway >= 13.0, < 13.0-64.35 cpe:2.3:a:citrix:gateway:*:*:*:*:*:*:*:*
citrix netscaler_gateway >= 12.1, < 12.1-58.15 cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*
citrix sd-wan_wanop >= 10.2, < 10.2.7b cpe:2.3:o:citrix:sd-wan_wanop:*:*:*:*:*:*:*:*
citrix sd-wan_wanop >= 11.0, < 11.0.3f cpe:2.3:o:citrix:sd-wan_wanop:*:*:*:*:*:*:*:*
citrix sd-wan_wanop >= 11.1, < 11.1.2a cpe:2.3:o:citrix:sd-wan_wanop:*:*:*:*:*:*:*:*
citrix sd-wan_wanop >= 11.2, < 11.2.1a cpe:2.3:o:citrix:sd-wan_wanop:*:*:*:*:*:*:*:*

References for CVE-2020-8246

cvelogic Threat Intelligence