Threat Intelligence / CVE / CVE-2025-5777

CVE-2025-5777

CISA KEVRansomware
CVSS 7.5 (HIGH) · EPSS 62.3% · Priority 10/10 · Published 2025-06-17

As of 2025-10-30, CVE-2025-5777 is a CVSS 7.5 (HIGH-severity) vulnerability. CISA KEV-listed (known exploited). EPSS exploitation probability 62.3%. Threadlinqs Intelligence tracks 5 threats exploiting it.

Last updated: 2025-10-30

Insufficient input validation leading to memory overread when the NetScaler is configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server

CVSS v3 vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weaknesses (CWE)

CWE-125, CWE-908, CWE-457

Exploitation status

CISA KEV-listed (known exploited)

Threats tracking this CVE

References

Full detection coverage & IOCs for threats exploiting CVE-2025-5777 are available via the Threadlinqs MCP server (Purple tier). View plans →

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Enriched from CVE.org, NVD (this product uses the NVD API but is not endorsed or certified by the NVD), FIRST EPSS, CISA KEV, and GitHub Security Advisories.