Which products and versions are affected by CVE-2020-8193?

Affected: Application Delivery Controller Firmware (Citrix); Gateway Firmware (Citrix); Netscaler Gateway Firmware (Citrix), among others. The full list is in the CVE brief.

Is CVE-2020-8193 being exploited in the wild?

It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 15, 2020.

Is CVE-2020-8193 in the CISA KEV catalog?

Yes. It was added on Nov 3, 2021 with a federal remediation due date of May 3, 2022.

Is there a public exploit for CVE-2020-8193?

Public exploit code is available.

How urgently should CVE-2020-8193 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2020-8193

MediumExploitedPublic exploit

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 unauthenticated access to certain URL endpoints.

Published Jul 10, 2020 · Updated Oct 30, 2025

Key Facts

Patch immediately

CVE-2020-8193 is a medium-severity vulnerability (CVSS 6.5 v3.1) affecting Application Delivery Controller Firmware (Citrix), Gateway Firmware (Citrix), Netscaler Gateway Firmware (Citrix) and 2 more products.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 15, 2020. Public exploit code is available.
EPSS estimates a 88% probability of exploitation in the next 30 days.
Fixed versions are available, including Application Delivery Controller Firmware 10.5-70.18, Gateway Firmware 13.0-58.30, Netscaler Gateway Firmware 10.5-70.18.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

6.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS (30-day exploit likelihood)

88%

Higher than 99.7% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2020-8193 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
CISA KEV	Nov 3, 2021	May 3, 2022	Not reported
Industry KEV feed	Sep 15, 2020	May 3, 2022	Not reported
CIRCL KEV	Nov 3, 2021	May 3, 2022	Not reported
ENISA EUVD	Nov 3, 2021	n/a	Not reported

Required action: Apply updates per vendor instructions.

Affected Products

5 affected entries in total

Product	Affected versions	Fixed in
Application Delivery Controller FirmwareCitrix	See advisory	10.5-70.18
Gateway FirmwareCitrix	See advisory	13.0-58.30
Netscaler Gateway FirmwareCitrix	See advisory	10.5-70.18
SD-WAN WanopCitrix	See advisory	10.2.7
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	n/a

Patched Releases

Application Delivery Controller Firmware

10.5-70.18

Gateway Firmware

13.0-58.30

Netscaler Gateway Firmware

10.5-70.18

SD-WAN Wanop

10.2.7

Timeline

Publicly disclosed
Jul 10, 2020
Added to Industry KEV feed
Sep 15, 2020
Added to CISA KEV
Nov 3, 2021
Added to CIRCL KEV
Nov 3, 2021
Added to ENISA EUVD
Nov 3, 2021
Last updated
Oct 30, 2025

Weakness Type

CWE-284 Improper Access Control
CWE-287 Improper Authentication

References

advisoryhttps://support.citrix.com/article/CTX276688
exploithttp://packetstormsecurity.com/files/160047/Citrix-ADC-NetScaler-Local-File-Inclusion.html
exploitVulnCheck exploitation report
exploitVulnCheck exploitation report
exploitVulnCheck exploitation report

8 more references in the full CVE brief

FAQ

Common Questions.

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 unauthenticated access to certain URL endpoints.
Affected: Application Delivery Controller Firmware (Citrix); Gateway Firmware (Citrix); Netscaler Gateway Firmware (Citrix), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 15, 2020.
Yes. It was added on Nov 3, 2021 with a federal remediation due date of May 3, 2022.
Public exploit code is available.
Fixed versions are available, including Application Delivery Controller Firmware 10.5-70.18, Gateway Firmware 13.0-58.30, Netscaler Gateway Firmware 10.5-70.18.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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