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CVE-2020-8193

95
FAUCET Score

CVE-2020-8193 is an improper access control vulnerability affecting Citrix ADC, Citrix Gateway, and Citrix SDWAN WAN-OP products, allowing unauthenticated access to specific URL endpoints. With a CVSS score of 6.5 (Medium), it presents a low-complexity attack vector that can be exploited remotely without authentication, potentially leading to information disclosure and unauthorized modification. This CVE is actively exploited in the wild, notably by state-sponsored actors, and has garnered significant community and media attention, including mentions in NSA advisories regarding Chinese state-sponsored hacking. While no Metasploit module exists, Nuclei templates for local file inclusion related to this vulnerability are available.

Impacted Technologies

VendorProductVersion(s)CPE
>= 10.5, < 10.5-70.18CPE matchmatch criteria
cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:*
>= 11.1, < 11.1-64.14CPE matchmatch criteria
cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:*
>= 12.0, < 12.0-63.21CPE matchmatch criteria
cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:*
>= 12.1, < 12.1-57.18CPE matchmatch criteria
cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:*
>= 13.0, < 13.0-58.30CPE matchmatch criteria
cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
88.41%
Probability of exploitation in next 30 days
EPSS Percentile
99.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Nov 3, 2021
Nuclei: CVE-2020-8193 · Jul 11, 2020
This CVE's current EPSS score of 0.8841 is in the 100th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

citrixvendor investigatingvia nvd_reference
View patch

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
packetstormsecurity.com / files/160047/Citrix-ADC-NetScaler-Local-File-Inclusion.html
ExploitThird Party AdvisoryVDB Entry
support.citrix.com / article/CTX276688
Vendor Advisory