Cybersecurity Alerts

Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability

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.

Required Action

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

Weakness Classification

CWE-119

References

• 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