Application Delivery Controller Firmware vulnerabilitiesAnd the versions its exploited flaws hit.

Product5 known exploited26 versions
The short answer

Application Delivery Controller Firmware is made by Citrix. We track 30 published vulnerabilities in it, across 26 versions. 5 of them are on the list of flaws known to be exploited, the newest added on 13 December 2022. If you run Application Delivery Controller Firmware, check your version against the exploited flaws below and patch those first.

Check your version

The most recent Application Delivery Controller Firmware flaw added to the known-exploited list is CVE-2022-27518, on 13 December 2022. We keep watching the known-exploited list.

Versions

Which versions of Application Delivery Controller Firmware do the exploited flaws hit?

Each exploited flaw lists the versions it affects, usually as ranges. "12.1 to before 12.1-65.25" means from 12.1 up to, but not including, 12.1-65.25. Find your version, then patch.

  • CVE-2022-27518Exploited list, 13 Dec 2022

    Citrix Application Delivery Controller (ADC) and Gateway Authentication Bypass Vulnerability

    12.1 to before 12.1-65.2513.0 to before 13.0-58.32
  • CVE-2019-19781Exploited list, 3 Nov 2021

    Citrix ADC, Gateway, and SD-WAN WANOP Appliance Code Execution Vulnerability

    10.511.112.012.113.0
  • CVE-2020-8193Exploited list, 3 Nov 2021

    Citrix ADC, Gateway, and SD-WAN WANOP Appliance Authorization Bypass Vulnerability

    10.5 to before 10.5-70.1811.1 to before 11.1-64.1412.0 to before 12.0-63.2112.1 to before 12.1-57.1813.0 to before 13.0-58.30
  • CVE-2020-8195Exploited list, 3 Nov 2021

    Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerability

    10.5 to before 10.5-70.1811.1 to before 11.1-64.1412.0 to before 12.0-63.2112.1 to before 12.1-57.1813.0 to before 13.0-58.30
  • CVE-2020-8196Exploited list, 3 Nov 2021

    Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerability

    10.5 to before 10.5-70.1811.1 to before 11.1-64.1412.0 to before 12.0-63.2112.1 to before 12.1-57.1813.0 to before 13.0-58.30
Known exploited

Which Application Delivery Controller Firmware vulnerabilities are being exploited?

5 flaws are on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.

  1. 9.8
    CVE-2022-27518CriticalKnown exploited
    Citrix Application Delivery Controller (ADC) and Gateway Authentication Bypass Vulnerability

    Citrix Application Delivery Controller (ADC) and Gateway, when configured with SAML SP or IdP configuration, contain an authentication bypass vulnerability that allows an attacker to execute code as administrator.

    Chance of use6.9%Known exploited since13 Dec 2022
  2. 9.8
    CVE-2019-19781CriticalKnown exploited
    Citrix ADC, Gateway, and SD-WAN WANOP Appliance Code Execution Vulnerability

    Citrix ADC, Citrix Gateway, and multiple Citrix SD-WAN WANOP appliance models contain an unspecified vulnerability that could allow an unauthenticated attacker to perform code execution.

    Chance of use>99%Known exploited since3 Nov 2021
  3. 6.5
    CVE-2020-8193MediumKnown exploited
    Citrix ADC, Gateway, and SD-WAN WANOP Appliance Authorization Bypass Vulnerability

    Citrix ADC, Citrix Gateway, and multiple Citrix SD-WAN WANOP appliance models contain an authorization bypass vulnerability that may allow unauthenticated access to certain URL endpoints.

    Chance of use88%Known exploited since3 Nov 2021
  4. 6.5
    CVE-2020-8195MediumKnown exploited
    Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerability

    Citrix ADC, Citrix Gateway, and multiple Citrix SD-WAN WANOP appliance models contain an information disclosure vulnerability.

    Chance of use33%Known exploited since3 Nov 2021
  5. 4.3
    CVE-2020-8196MediumKnown exploited
    Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerability

    Citrix ADC, Citrix Gateway, and multiple Citrix SD-WAN WANOP appliance models contain an information disclosure vulnerability.

    Chance of use26%Known exploited since3 Nov 2021
Exploit likelihood

Which Application Delivery Controller Firmware flaws are most likely to be used?

Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.

50% or more10% to 49%Under 10%
  1. >99%
    CVE-2019-19781CriticalKnown exploited

    An issue was discovered in Citrix Application Delivery Controller (ADC) and Gateway 10.5, 11.1, 12.0, 12.1, and 13.0.

    CVSS9.8Published27 Dec 2019
  2. 88%
    CVE-2020-8193MediumKnown exploited

    Improper access control 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 allows...

    CVSS6.5Published10 Jul 2020
  3. 33%
    CVE-2020-8195MediumKnown exploited

    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...

    CVSS6.5Published10 Jul 2020
  4. 26%
    CVE-2020-8196MediumKnown exploited

    Improper access control 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...

    CVSS4.3Published10 Jul 2020
  5. 23%

    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 allows...

    CVSS6.1Published10 Jul 2020
  6. 14%

    Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway 10.5 before build 67.13, 11.0 before build 71.22, 11.1 before build 56.19, and 12.0 before build 53.22 might allow remote attackers to...

    CVSS5.9Published13 Dec 2017
  7. 11%

    Reflected code injection 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 allows the...

    CVSS6.5Published10 Jul 2020
  8. 6.9%
    CVE-2022-27518CriticalKnown exploited

    Unauthenticated remote arbitrary code execution

    CVSS9.8Published13 Dec 2022
  9. 6.0%

    The AppFirewall functionality in Citrix NetScaler Application Delivery Controller and NetScaler Gateway 10.5 before Build 68.7, 11.0 before Build 71.24, 11.1 before Build 58.13, and 12.0 before Build 57.24 allows...

    CVSS9.8Published17 May 2018
  10. 3.0%

    Citrix ADC and Citrix/NetScaler Gateway before 13.0-82.41, 12.1-62.23, 11.1-65.20 and Citrix ADC 12.1-FIPS before 12.1-55.238 suffer from improper access control allowing SAML authentication hijack through a phishing...

    CVSS6.5Published16 Jun 2021
EdgeProtect

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We track 30 published vulnerabilities listed under the name Application Delivery Controller Firmware, across 26 versions. The most recent Application Delivery Controller Firmware flaw added to the known-exploited list is CVE-2022-27518, on 13 December 2022.

5 are on the list of flaws known to be exploited. The most recently added are CVE-2022-27518, CVE-2019-19781 and CVE-2020-8193.

Each flaw names its own versions, usually as ranges. The newest, CVE-2022-27518, affects 12.1 to before 12.1-65.25, 13.0 to before 13.0-58.32. The versions for every exploited flaw are listed on this page.

Create a EdgeProtect account and track Application Delivery Controller Firmware. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.