Fixed Intel

CISA Known Exploited Vulnerability

This vulnerability is actively exploited in the wild and listed in the CISA Known Exploited Vulnerabilities catalog.

Remediation Deadline: Feb 7, 2024

CVE-2023-6549

High
EPSS 74.9%CISA KEV
Citrix/NetScaler ADC and NetScaler Gateway

Description

Citrix NetScaler ADC and NetScaler Gateway contain a buffer overflow vulnerability that allows for a denial-of-service when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server.

EPSS — Exploit Probability

74.9%

Higher than 98.8% of all CVEs

Required Action

https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549; https://nvd.nist.gov/vuln/detail/CVE-2023-6549

Risk Assessment

HIGH
In CISA KEV
High EPSS

Details

Severity
High
EPSS
74.9%
CISA KEV
Yes
Ransomware
Unknown
Articles
0

Timeline

Published

Jan 17, 2024

Added to KEV

Jan 17, 2024

Remediation Due

Feb 7, 2024

Affected Product

Citrix

NetScaler ADC and NetScaler Gateway

View all Citrix CVEs