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Known Exploited Vulnerability
9.8
CRITICAL CVSS 3.1
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 Notification
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.

Description :

Citrix NetScaler ADC and NetScaler Gateway contains a code injection vulnerability that allows for unauthenticated remote code execution.

Required Action :

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Notes :

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.

ID Vendor Product Action
1 Citrix netscaler_application_delivery_controller
2 Citrix netscaler_gateway
: Total Affected Vendor : 1 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 CRITICAL [email protected]
CVSS 3.1 CRITICAL [email protected]
Solution
This information is provided by the 3rd party feeds.
  • 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).

Profile Photo
Cyb3rTim/Cyber-Threat-Intelligence-Dashboard

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.

Updated: 2 weeks, 4 days ago
0 stars 0 fork 0 watcher
Born at : Aug. 7, 2025, 11:37 a.m. This repo has been linked 3 different CVEs too.
Profile Photo
Jalexander798/JA_Tools-Cybersecurity-Resource-2

None

Updated: 4 weeks, 2 days ago
0 stars 0 fork 0 watcher
Born at : July 25, 2025, 7:02 p.m. This repo has been linked 96 different CVEs too.
Profile Photo
itsrealmail/play

None

Python Shell

Updated: 1 month, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : July 4, 2025, 5:10 a.m. This repo has been linked 3 different CVEs too.
Profile Photo
bachkhoasoft/awesome-list-ks

None

Updated: 1 month, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : June 29, 2025, 6:30 a.m. This repo has been linked 94 different CVEs too.
Profile Photo
PatriceBertin/Cyber-Defense

None

Updated: 3 months ago
0 stars 0 fork 0 watcher
Born at : May 18, 2025, 7:24 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
S3cur3Th1sSh1t/My-starred-Repositories

This is my starred repositories including the description for each tool. Makes search/filter over them easier.

Updated: 1 month, 1 week ago
51 stars 6 fork 6 watcher
Born at : Feb. 26, 2025, 11:57 a.m. This repo has been linked 91 different CVEs too.
Profile Photo
getanehAl/Windows-Penetration-Testing

None

PowerShell C#

Updated: 2 months, 4 weeks ago
2 stars 0 fork 0 watcher
Born at : Oct. 11, 2024, 6:07 a.m. This repo has been linked 28 different CVEs too.
Profile Photo
zerobytesecure/citrixInspector

None

Python

Updated: 1 year, 1 month ago
0 stars 0 fork 0 watcher
Born at : June 25, 2024, 9:01 p.m. This repo has been linked 3 different CVEs too.
Profile Photo
0xMarcio/cve

Latest CVEs with their Proof of Concept exploits.

Python

Updated: 11 hours, 44 minutes ago
106 stars 12 fork 12 watcher
Born at : May 24, 2024, 11:02 a.m. This repo has been linked 82 different CVEs too.
Profile Photo
whoami13apt/files2

None

Updated: 9 months ago
1 stars 0 fork 0 watcher
Born at : May 16, 2024, 2:53 p.m. This repo has been linked 48 different CVEs too.
Profile Photo
PudgyDragon/IOCs

Repository of IOCs that can be pulled into tools.

Python PowerShell YARA

Updated: 8 months, 3 weeks ago
1 stars 0 fork 0 watcher
Born at : Dec. 12, 2023, 1:50 p.m. This repo has been linked 6 different CVEs too.
Profile Photo
Mohammaddvd/CVE-2023-3519

Stack-Overflow on Citrix

Python

Updated: 4 months, 1 week ago
5 stars 0 fork 0 watcher
Born at : Oct. 27, 2023, 6:39 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
JonaNeidhart/CVE-2023-3519-BackdoorCheck

Script for checking CVE-2023-3519 for Backdoors

Python

Updated: 1 year, 11 months ago
0 stars 0 fork 0 watcher
Born at : Aug. 31, 2023, 9:10 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
Chocapikk/CVE-2023-3519

Citrix ADC RCE CVE-2023-3519

Python

Updated: 5 months ago
5 stars 0 fork 0 watcher
Born at : Aug. 24, 2023, 12:24 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
iluaster/getdrive_PoC

PoC. Severity critical.

Shell Ruby Python PHP

Updated: 2 years ago
0 stars 1 fork 1 watcher
Born at : Aug. 10, 2023, 8:31 p.m. This repo has been linked 18 different CVEs too.

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

Published Date: Aug 25, 2025 (2 hours, 44 minutes ago)
  • 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

Published Date: Aug 25, 2025 (10 hours, 44 minutes ago)
  • 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

Published Date: Aug 24, 2025 (1 day, 9 hours ago)
  • 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

Published Date: Aug 24, 2025 (1 day, 15 hours ago)
  • 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

Published Date: Aug 23, 2025 (1 day, 19 hours ago)
  • 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

Published Date: Aug 23, 2025 (1 day, 21 hours ago)
  • 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

Published Date: Aug 23, 2025 (1 day, 23 hours ago)
  • 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

Published Date: Aug 23, 2025 (2 days, 1 hour ago)
  • 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

Published Date: Aug 23, 2025 (2 days, 11 hours ago)
  • 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

Published Date: Aug 22, 2025 (2 days, 19 hours ago)
  • 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

Published Date: Aug 22, 2025 (2 days, 21 hours ago)
  • 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

Published Date: Aug 22, 2025 (2 days, 21 hours ago)
  • 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

Published Date: Aug 22, 2025 (3 days, 3 hours ago)
  • 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

Published Date: Aug 22, 2025 (3 days, 3 hours ago)
  • 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

Published Date: Aug 22, 2025 (3 days, 5 hours ago)
  • 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

Published Date: Aug 22, 2025 (3 days, 6 hours ago)
  • 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

Published Date: Aug 22, 2025 (3 days, 7 hours ago)
  • 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

Published Date: Aug 22, 2025 (3 days, 9 hours ago)
  • 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

Published Date: Aug 22, 2025 (3 days, 11 hours ago)
  • 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

Published Date: Aug 22, 2025 (3 days, 13 hours ago)

Results are limited to the first 20 news articles due to potential performance issues.

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
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 9.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
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