PT-2026-53880 · Citrix · Netscaler Gateway+1

Published 2026-06-30 · Updated 2026-07-01 · CVE-2026-8452

Positive Technologies (AI Summary)

CVSS v4.0

8.8

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions NetScaler ADC (affected versions not specified) NetScaler Gateway (affected versions not specified)

Description A memory overflow issue exists when the appliance is configured as an AAA virtual server or a Gateway, including SSL VPN, ICA Proxy, CVPN, and RDP Proxy. This flaw can lead to unpredictable or erroneous behavior and a Denial of Service (DoS), which is a condition where a system becomes unavailable to its intended users.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2026-8452

Affected Products

Netscaler Adc

Netscaler Gateway

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-8452 · Security Note
• https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696604&articleTitle=CTX696604_NetScaler_ADC_and_NetScaler_Gateway_Security_Bulletin_for_CVE_2026_8451_CVE_2026_8452_CVE_2026_8655_CVE_2026_10816_CVE_2026_10817_and_CVE_2026_13474 · Reddit Post
• https://twitter.com/autumn_good_35/status/2072148033903743176 · Twitter Post
• https://twitter.com/jantytgat/status/2071932739729702963 · Twitter Post
• https://twitter.com/_POPPELGAARD/status/2072041311918559482 · Twitter Post
• https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696604 · Note