CVE-2023-4967

HIGH EXPLOITED RANSOMWARE

Citrix NetScaler ADC and Gateway 12.1-13.0 - Denial of Service in Gateway Configuration

Title source: llm

Exploitation Summary

CVE-2023-4967 has been observed exploited in the wild (reported by VulnCheck KEV), including in ransomware campaigns.

Description

Denial of Service in NetScaler ADC and NetScaler Gateway when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA Virtual Server

References (1)

Core 1

Core References

Vendor Advisory

https://support.citrix.com/article/CTX579459/

Scores

CVSS v3 8.2

EPSS 0.0057

EPSS Percentile 68.7%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

VulnCheck KEV 2024-02-08

Ransomware Use Confirmed

CWE

CWE-119

Status published

Products (3)

citrix/netscaler_application_delivery_controller 12.1 - 12.1-55.300 (2 CPE variants)

citrix/netscaler_application_delivery_controller 13.0 - 13.0-92.19

citrix/netscaler_gateway 13.0 - 13.0-92.19

Published Oct 27, 2023

Tracked Since Feb 18, 2026