🔐 CVE Alert

CVE-2023-4966

CRITICAL 9.4 ⚠️ CISA KEV

Unauthenticated sensitive information disclosure

CVSS Score
9.4
EPSS Score
0.0%
EPSS Percentile
0th

Sensitive information disclosure in NetScaler ADC and NetScaler Gateway when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA  virtual server.

CWE CWE-119
Vendor citrix
Product netscaler adc
Ecosystems
Industries
TechnologyEnterprise
Published Oct 10, 2023
Last Updated Oct 21, 2025
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low

Affected Versions

Citrix / NetScaler ADC
14.1 < 8.50 13.1 < 49.15 13.0 < 92.19 13.1-FIPS < 37.164 12.1-FIPS < 55.300 12.1-NDcPP < 55.300
Citrix / NetScaler Gateway
14.1 < 8.50 13.1 < 49.15 13.0 < 92.19

References

NVD ↗ CVE.org ↗ EPSS Data ↗
support.citrix.com: https://support.citrix.com/article/CTX579459 packetstormsecurity.com: http://packetstormsecurity.com/files/175323/Citrix-Bleed-Session-Token-Leakage-Proof-Of-Concept.html cisa.gov: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-4966