CVE-2023-3519

CVE Enrichment

CVSS: 9.8 CRITICAL
EPSS: 99.75%
EPSS Percentile: 99.95%
CISA KEV: YES — Known Exploited Vulnerability

Description

Unauthenticated remote code execution

Technical Details

CVSS Version: 3.1
CNA / NVD Source: secure@citrix.com
Published: 20-Jul-2023 01:15
Last Modified: 05-Aug-2026 12:16
EPSS Date: 2026-10-11
CWE: CWE-94

CVSS Vector


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

CISA KEV Details

Date Added: 2023-07-19
Remediation Due: 2023-08-09
Known Ransomware Campaign Use: Known
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 / Versions

citrix / netscaler_application_delivery_controller
Version / affected range: * · from (inclusive) 12.1 · before (exclusive) 12.1-55.297
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*
citrix / netscaler_application_delivery_controller
Version / affected range: * · from (inclusive) 12.1 · before (exclusive) 12.1-55.297
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*
citrix / netscaler_application_delivery_controller
Version / affected range: * · from (inclusive) 13.0 · before (exclusive) 13.0-91.13
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*
citrix / netscaler_application_delivery_controller
Version / affected range: * · from (inclusive) 13.1 · before (exclusive) 13.1-37.159
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*
citrix / netscaler_application_delivery_controller
Version / affected range: * · from (inclusive) 13.1 · before (exclusive) 13.1-49.13
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*
citrix / netscaler_gateway
Version / affected range: * · from (inclusive) 13.0 · before (exclusive) 13.0-91.13
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*
citrix / netscaler_gateway
Version / affected range: * · from (inclusive) 13.1 · before (exclusive) 13.1-49.13
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*

References

Last enrichment sync: 12-Oct-2026 01:57
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (2)

vulnerabilities in public-facing applications such as CVE-2023-3519 (Citrix Acronis Details INC Ransomware’s Growth, Tactics and Cross-Platform Payloads
to Android and Windows malware distribution (e.g., Hydra, SectopRAT), Citrix Netscaler exploitation (CVE-2023-3519), and phishing targeting financial and government sectors. While smaller than more established Phishing Kit Shifts Credential and OTP Validation Server-Side to Evade Analysis

CVE (3)

Malware (11)

People (3)

Threat Actors (11)

MITRE ATT&CK (1)

Vendors (7)

Products (9)

Tools (15)

Industries (9)

Countries (7)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.