SARA / Free Tools / KEV / CVE-2025-7775

CVE-2025-7775 on CISA KEV

Memory overflow vulnerability leading to Remote Code Execution and/or Denial of Service in NetScaler ADC and NetScaler Gateway when NetScaler is configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server

CISA KEV — Actively Exploited

Citrix NetScaler Memory Overflow Vulnerability

Vendor / Product
— / Citrix / NetScaler
Added to KEV
2025-08-26
BOD 22-01 due
2025-08-28
Ransomware use
Unknown
CVSS / EPSS
9.2 CRITICAL · EPSS 6.57%

01What CISA says about this vulnerability

Memory overflow vulnerability leading to Remote Code Execution and/or Denial of Service in NetScaler ADC and NetScaler Gateway when NetScaler is configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server

02Required action — verbatim from CISA

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

03Notes & references

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

VendorProductVersions
NetScalerADC14.1, 13.1, 13.1 FIPS and NDcPP, 12.1 FIPS and NDcPP
NetScalerGateway14.1, 13.1, 13.1 FIPS and NDcPP, 12.1 FIPS and NDcPP

06Detection

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection:

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Programmatic KEV data?
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