Vulnerability details
CVE-2023-4966
Actively exploited
Citrix NetScaler ADCCitrix netscaler_gateway
Unauthenticated sensitive information disclosure
CVSS 3.1
9.4Critical
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.4Critical | 3.1 | CVEProject cvelistV5 (CNA) (Citrix) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Citrix | NetScaler ADC | 12.1-FIPS ≤ v < 55.300 | CVEProject cvelistV5 (CNA) |
| Citrix | NetScaler ADC | 12.1-NDcPP ≤ v < 55.300 | CVEProject cvelistV5 (CNA) |
| Citrix | NetScaler ADC | 13.0 ≤ v < 92.19 | CVEProject cvelistV5 (CNA) |
| Citrix | NetScaler ADC | 13.1 ≤ v < 49.15 | CVEProject cvelistV5 (CNA) |
| Citrix | NetScaler ADC | 13.1-FIPS ≤ v < 37.164 | CVEProject cvelistV5 (CNA) |
| Citrix | NetScaler ADC | 14.1 ≤ v < 8.50 | CVEProject cvelistV5 (CNA) |
| Citrix | netscaler_gateway | 13.0 ≤ v < 92.19 | CVEProject cvelistV5 (CNA) |
| Citrix | netscaler_gateway | 13.1 ≤ v < 49.15 | CVEProject cvelistV5 (CNA) |
| Citrix | netscaler_gateway | 14.1 ≤ v < 8.50 | CVEProject cvelistV5 (CNA) |
References and advisories
3
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Details
- Published
- 2023-10-10
- Last updated
- 2026-07-31
- State
- Published
- Assigner (CNA)
- Citrix
- Kolun priority
- 89 · Critical
CISA KEV catalog
- Date added
- 2023-10-18
- Due date
- 2023-11-08
- Used in ransomware
- Yes
Exploit prediction (EPSS)
99.99%
Probability of exploitation in 30 days
99.9%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Active
- Technical impact
- Total
Weaknesses (CWE)
- CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer