CVE-2025-7776

Netscaler Application Delivery Controller vulnerability

CVSS

9.8

EPSS

6.7%

EPSS pct

93th

Exploited

No known

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

Affected vendor

Citrix

Affected product

Netscaler Application Delivery Controller

CVSS vector

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

Weakness type (CWE)

CWE-119 — Improper Restriction of Operations within Memory Bounds

Published

2025-08-26

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 6.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2025-7776

Confirm whether Citrix Netscaler Application Delivery Controller is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2025-7776.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2025-7776

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2025-7776 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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