CVE-2025-7776 — CRITICAL (9.8)

Q: How severe is CVE-2025-7776?

CVE-2025-7776 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2025-7776?

Check the references section above for vendor advisories and patch information. Affected products include: Citrix Netscaler Application Delivery Controller, Citrix Netscaler Gateway.

Vulnerability 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

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

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

Related Weaknesses (CWE)

CWE-119

References

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

FAQ

What is CVE-2025-7776?

CVE-2025-7776 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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,...

How severe is CVE-2025-7776?

CVE-2025-7776 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2025-7776?

Check the references section above for vendor advisories and patch information. Affected products include: Citrix Netscaler Application Delivery Controller, Citrix Netscaler Gateway.