CVE-2026-8452

Description

Memory overflow vulnerability NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if the appliance is configured as a Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server

CVSS v3.1 Score

9.8

CRITICAL

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

EPSS — Exploit Prediction

0.0049

Probability of exploitation

0.38%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-119 Buffer Overflow

Affected Products

Vendor	Product	Versions
citrix	netscaler_application_delivery_controller	< 13.1-37.272
citrix	netscaler_application_delivery_controller	< 13.1-37.272
citrix	netscaler_application_delivery_controller	13.1 — 13.1-63.18
citrix	netscaler_application_delivery_controller	14.1 — 14.1-72.61
citrix	netscaler_application_delivery_controller	All
citrix	netscaler_gateway	13.1 — 13.1-63.18
citrix	netscaler_gateway	14.1 — 14.1-72.61

References

Advisories & Patches

https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696604

Frequently Asked Questions

What is CVE-2026-8452? +

Memory overflow vulnerability NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if the appliance is configured as a Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-8452? +

CVE-2026-8452 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0049, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-8452? +

CVE-2026-8452 affects products from citrix, specifically: netscaler_application_delivery_controller, netscaler_gateway. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-8452? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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