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CVE-2025-7775: Citrix NetScaler Memory Overflow Vulnerability

criticalknown exploitedpublic exploitCVE-2025-7775
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Citrix NetScaler ADC and NetScaler Gateway contain a memory overflow vulnerability that could allow for remote code execution and/or denial of service.

CSIRTS triage

vendor: Citrixproduct: NetScaler ADC and NetScaler GatewayRemote code executionDenial of service
What
A memory overflow vulnerability could allow for remote code execution and/or denial of service.
Who is affected
Users of Citrix NetScaler ADC and NetScaler Gateway.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Users should apply the latest patches from Citrix.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2025-08-26
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-7775

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2025-7775coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

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