Description

Invicti determined that it is possible to leak memory from Citrix NetScaler. Due to a memory disclosure vulnerability, an unauthenticated attacker can extract sensitive information from the system, potentially leading to its compromise.

Remediation

Upgrade to the latest version of Citrix NetScaler

References

How Much More Must We Bleed? - Citrix NetScaler Memory Disclosure (CitrixBleed 2 CVE-2025-5777)

NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2025-5349 and CVE-2025-5777

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Severity

Critical

Classification

CVE-2025-5777 CVE-2025-5349 CWE-457 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L

Tags

Information Disclosure Missing Update Known Vulnerabilities