CVE-2023-3519
Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability - [Actively Exploited]
Description
Unauthenticated remote code execution
INFO
Published Date :
July 19, 2023, 6:15 p.m.
Last Modified :
Feb. 13, 2025, 5:16 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
Citrix NetScaler ADC and NetScaler Gateway contains a code injection vulnerability that allows for unauthenticated remote code execution.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467; https://nvd.nist.gov/vuln/detail/CVE-2023-3519
Affected Products
The following products are affected by CVE-2023-3519
vulnerability.
Even if cvefeed.io
is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
---|---|---|---|---|---|---|
CVSS 3.1 | CRITICAL | [email protected] | ||||
CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Upgrade to version 12.1-55.297-FIPS, 13.1-37.159-FIPS, 13.0-91.13, 13.1-49.13 or later.
Public PoC/Exploit Available at Github
CVE-2023-3519 has a 44 public
PoC/Exploit
available at Github.
Go to the Public Exploits
tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-3519
.
URL | Resource |
---|---|
http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.html | Exploit Third Party Advisory VDB Entry |
https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467 | Vendor Advisory |
http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.html | Exploit Third Party Advisory VDB Entry |
https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-3519
is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-3519
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
A professional SOC-style cyber threat intelligence dashboard built using React and Express.js. This project simulates real-time tracking of APT27 (aka Silk Typhoon) activities using verified IOCs, CVEs, and MITRE ATT&CK mappings.
None
None
Python Shell
None
None
This is my starred repositories including the description for each tool. Makes search/filter over them easier.
None
PowerShell C#
None
Python
Latest CVEs with their Proof of Concept exploits.
Python
None
Repository of IOCs that can be pulled into tools.
Python PowerShell YARA
Stack-Overflow on Citrix
Python
Script for checking CVE-2023-3519 for Backdoors
Python
Citrix ADC RCE CVE-2023-3519
Python
PoC. Severity critical.
Shell Ruby Python PHP
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-3519
vulnerability anywhere in the article.
-
CrowdStrike.com
MURKY PANDA: A Trusted-Relationship Threat in the Cloud
Since late 2024, CrowdStrike Counter Adversary Operations has observed significant activity conducted by MURKY PANDA, a China-nexus adversary that has targeted government, technology, academic, legal, ... Read more
-
CrowdStrike.com
MURKY PANDA: A Trusted-Relationship Threat in the Cloud
Since late 2024, CrowdStrike Counter Adversary Operations has observed significant activity conducted by MURKY PANDA, a China-nexus adversary that has targeted government, technology, academic, legal, ... Read more
-
CrowdStrike.com
MURKY PANDA: A Trusted-Relationship Threat in the Cloud
Since late 2024, CrowdStrike Counter Adversary Operations has observed significant activity conducted by MURKY PANDA, a China-nexus adversary that has targeted government, technology, academic, legal, ... Read more
-
CrowdStrike.com
MURKY PANDA: A Trusted-Relationship Threat in the Cloud
Since late 2024, CrowdStrike Counter Adversary Operations has observed significant activity conducted by MURKY PANDA, a China-nexus adversary that has targeted government, technology, academic, legal, ... Read more
-
CrowdStrike.com
MURKY PANDA: A Trusted-Relationship Threat in the Cloud
Since late 2024, CrowdStrike Counter Adversary Operations has observed significant activity conducted by MURKY PANDA, a China-nexus adversary that has targeted government, technology, academic, legal, ... Read more
-
CrowdStrike.com
MURKY PANDA: A Trusted-Relationship Threat in the Cloud
Since late 2024, CrowdStrike Counter Adversary Operations has observed significant activity conducted by MURKY PANDA, a China-nexus adversary that has targeted government, technology, academic, legal, ... Read more
-
CrowdStrike.com
MURKY PANDA: A Trusted-Relationship Threat in the Cloud
Since late 2024, CrowdStrike Counter Adversary Operations has observed significant activity conducted by MURKY PANDA, a China-nexus adversary that has targeted government, technology, academic, legal, ... Read more
-
CrowdStrike.com
MURKY PANDA: A Trusted-Relationship Threat in the Cloud
Since late 2024, CrowdStrike Counter Adversary Operations has observed significant activity conducted by MURKY PANDA, a China-nexus adversary that has targeted government, technology, academic, legal, ... Read more

-
BleepingComputer
Murky Panda hackers exploit cloud trust to hack downstream customers
A Chinese state-sponsored hacking group known as Murky Panda (Silk Typhoon) exploits trusted relationships in cloud environments to gain initial access to the networks and data of downstream customers ... Read more

-
The Cyber Express
China-linked Silk Typhoon Hackers Target SaaS Providers, Zero Days
The China-linked advanced persistent threat (APT) group Silk Typhoon has shown a rare ability to compromise trusted relationships in the cloud. That’s one of the key takeaways from new research by Cro ... Read more
-
CrowdStrike.com
MURKY PANDA: A Trusted-Relationship Threat in the Cloud
Since late 2024, CrowdStrike Counter Adversary Operations has observed significant activity conducted by MURKY PANDA, a China-nexus adversary that has targeted government, technology, academic, legal, ... Read more

-
Help Net Security
China-linked Murky Panda targets and moves laterally through cloud services
In its recently released 2025 Threat Hunting Report, Crowdstrike pointed out an interesting trend: a 136% surge in cloud intrusions. A good chunk of this surge is due to “China-nexus adversaries”, Mur ... Read more
-
CrowdStrike.com
MURKY PANDA: A Trusted-Relationship Threat in the Cloud
Since late 2024, CrowdStrike Counter Adversary Operations has observed significant activity conducted by MURKY PANDA, a China-nexus adversary that has targeted government, technology, academic, legal, ... Read more
-
CrowdStrike.com
MURKY PANDA: A Trusted-Relationship Threat in the Cloud
Since late 2024, CrowdStrike Counter Adversary Operations has observed significant activity conducted by MURKY PANDA, a China-nexus adversary that has targeted government, technology, academic, legal, ... Read more

-
The Hacker News
Chinese Hackers Murky, Genesis, and Glacial Panda Escalate Cloud and Telecom Espionage
Cybersecurity researchers are calling attention to malicious activity orchestrated by a China-nexus cyber espionage group known as Murky Panda that involves abusing trusted relationships in the cloud ... Read more
-
CrowdStrike.com
MURKY PANDA: A Trusted-Relationship Threat in the Cloud
Since late 2024, CrowdStrike Counter Adversary Operations has observed significant activity conducted by MURKY PANDA, a China-nexus adversary that has targeted government, technology, academic, legal, ... Read more
-
CrowdStrike.com
MURKY PANDA: A Trusted-Relationship Threat in the Cloud
Since late 2024, CrowdStrike Counter Adversary Operations has observed significant activity conducted by MURKY PANDA, a China-nexus adversary that has targeted government, technology, academic, legal, ... Read more
-
CrowdStrike.com
MURKY PANDA: A Trusted-Relationship Threat in the Cloud
Since late 2024, CrowdStrike Counter Adversary Operations has observed significant activity conducted by MURKY PANDA, a China-nexus adversary that has targeted government, technology, academic, legal, ... Read more
-
CrowdStrike.com
MURKY PANDA: A Trusted-Relationship Threat in the Cloud
Since late 2024, CrowdStrike Counter Adversary Operations has observed significant activity conducted by MURKY PANDA, a China-nexus adversary that has targeted government, technology, academic, legal, ... Read more
-
CrowdStrike.com
MURKY PANDA: A Trusted-Relationship Threat in the Cloud
Since late 2024, CrowdStrike Counter Adversary Operations has observed significant activity conducted by MURKY PANDA, a China-nexus adversary that has targeted government, technology, academic, legal, ... Read more
The following table lists the changes that have been made to the
CVE-2023-3519
vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Modified Analysis by [email protected]
Mar. 10, 2025
Action Type Old Value New Value -
CVE Modified by [email protected]
Feb. 13, 2025
Action Type Old Value New Value Changed Description Unauthenticated remote code execution Unauthenticated remote code execution -
Modified Analysis by [email protected]
Jan. 27, 2025
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:citrix:netscaler_application_delivery_controller:11.1-65.22:*:*:*:fips:*:*:* *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* versions from (including) 12.1 up to (excluding) 12.1-55.297 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:* versions from (including) 12.1 up to (excluding) 12.1-55.297 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:* versions from (including) 13.0 up to (excluding) 13.0-91.13 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* versions from (including) 13.1 up to (excluding) 13.1-37.159 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:* versions from (including) 13.1 up to (excluding) 13.1-49.13 *cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:* versions from (including) 13.0 up to (excluding) 13.0-91.13 *cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:* versions from (including) 13.1 up to (excluding) 13.1-49.13 OR *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* versions from (including) 12.1 up to (excluding) 12.1-55.297 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:* versions from (including) 12.1 up to (excluding) 12.1-55.297 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:* versions from (including) 13.0 up to (excluding) 13.0-91.13 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* versions from (including) 13.1 up to (excluding) 13.1-37.159 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:* versions from (including) 13.1 up to (excluding) 13.1-49.13 *cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:* versions from (including) 13.0 up to (excluding) 13.0-91.13 *cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:* versions from (including) 13.1 up to (excluding) 13.1-49.13 -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.html Added Reference https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467 -
Modified Analysis by [email protected]
Jun. 27, 2024
Action Type Old Value New Value Changed Reference Type http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.html No Types Assigned http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Aug. 04, 2023
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.html [No Types Assigned] -
Initial Analysis by [email protected]
Jul. 19, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467 No Types Assigned https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467 Vendor Advisory Added CWE NIST CWE-94 Added CPE Configuration OR *cpe:2.3:a:citrix:netscaler_application_delivery_controller:11.1-65.22:*:*:*:fips:*:*:* *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* versions from (including) 12.1 up to (excluding) 12.1-55.297 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:* versions from (including) 12.1 up to (excluding) 12.1-55.297 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:* versions from (including) 13.0 up to (excluding) 13.0-91.13 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* versions from (including) 13.1 up to (excluding) 13.1-37.159 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:* versions from (including) 13.1 up to (excluding) 13.1-49.13 *cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:* versions from (including) 13.0 up to (excluding) 13.0-91.13 *cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:* versions from (including) 13.1 up to (excluding) 13.1-49.13
Vulnerability Scoring Details
Base CVSS Score: 9.8
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
90.96 }} 0.85%
score
0.99617
percentile