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Vulnerability · Published Aug 26, 2025 · Assigned by Citrix

CVE-2025-7776Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service

High 8.8

In plain English

A high-severity memory corruption in ADC from NetScaler. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 9.1% (higher than 95% of all known vulnerabilities).

Severity (CVSS 4.0)8.8High
Exploit odds (30 days)9.1%top 4.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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

Affected products (as reported)

VendorProductVersions
NetScaler ADC 14.1 – before 47.4813.1 – before 59.2213.1 FIPS and NDcPP – before 37.24112.1 FIPS and NDcPP – before 55.330
NetScaler Gateway 14.1 – before 47.4813.1 – before 59.2213.1 FIPS and NDcPP – before 37.24112.1 FIPS and NDcPP – before 55.330

Weakness: CWE-119 · Vector: 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

References