CVE-2025-7776

Name: CVE-2025-7776
Creator: NVD / NIST
Published: 2025-08-26T13:15:33.193+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 6.66%

Last modified Jun 17, 2026

CVE-2025-7776 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service in NetScaler ADC and NetScaler Gateway when NetScaler is configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) with PCoIP Profile bounded to it. EPSS estimates a 6.66% chance of exploitation in the next 30 days.

Description

Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service in NetScaler ADC and NetScaler Gateway when NetScaler is configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) with PCoIP Profile bounded to it

Metrics

CVSS 3.1

9.8/10

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

CVSS 4.0

8.8/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/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

EPSS Probability

6.66%

93.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Citrix	Netscaler Application Delivery Controller	>= 12.1, < 12.1-55.330
Citrix	Netscaler Application Delivery Controller	>= 13.1, < 13.1-37.241
Citrix	Netscaler Application Delivery Controller	>= 13.1, < 13.1-59.22
Citrix	Netscaler Application Delivery Controller	>= 14.1, < 14.1-47.48
Citrix	Netscaler Gateway	>= 13.1, < 13.1-59.22
Citrix	Netscaler Gateway	>= 14.1, < 14.1-47.48

References

https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694938Vendor Advisory

Timeline

Published: Aug 26, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-7776?

How severe is CVE-2025-7776?

CVE-2025-7776 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 6.66% probability of exploitation in the next 30 days.

How do I fix CVE-2025-7776?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-7776?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST