How severe is CVE-2020-8196?

CVE-2020-8196 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2020-8196 being actively exploited?

Yes. CVE-2020-8196 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2021-11-03, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2020-8196?

CVE-2020-8196 primarily affects Citrix Application Delivery Controller Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-8196?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2020-8196 have an EU (EUVD) identifier?

Yes. CVE-2020-8196 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-29073. It is also flagged as exploited in the EUVD (since 2021-11-03).

When was CVE-2020-8196 published?

CVE-2020-8196 was published on 2020-07-10 and last updated on 2026-06-17.

CVE-2020-8196

CVE-2020-8196 is a medium-severity vulnerability in Citrix Application Delivery Controller Firmware with a CVSS 3.x base score of 4.3. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2021-11-03). The underlying weakness is classified as CWE-287.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 26% (98th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2021-11-03)
EU (EUVD) id: EUVD-2020-29073
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2021-11-03)
Weakness: CWE-287
Affected product: Citrix Application Delivery Controller Firmware
Published: 2020-07-10
Last modified: 2026-06-17

Description

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 limited information disclosure to low privileged users.

Frequently asked questions

What is CVE-2020-8196?: 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 limited information disclosure to low privileged users.
How severe is CVE-2020-8196?: CVE-2020-8196 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2020-8196 being actively exploited?: Yes. CVE-2020-8196 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2021-11-03, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2020-8196?: CVE-2020-8196 primarily affects Citrix Application Delivery Controller Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-8196?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2020-8196 have an EU (EUVD) identifier?: Yes. CVE-2020-8196 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-29073. It is also flagged as exploited in the EUVD (since 2021-11-03).
When was CVE-2020-8196 published?: CVE-2020-8196 was published on 2020-07-10 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:citrix:netscaler_gateway_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:citrix:gateway_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:citrix:sd-wan_wanop:*:*:*:*:*:*:*:*

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