{
  "id": "CVE-2023-4966",
  "sourceIdentifier": "secure@citrix.com",
  "published": "2023-10-10T14:15:10.977",
  "lastModified": "2023-11-07T04:23:14.160",
  "vulnStatus": "Undergoing Analysis",
  "cisaExploitAdd": "2023-10-18",
  "cisaActionDue": "2023-11-08",
  "cisaRequiredAction": "Apply mitigations and kill all active and persistent sessions per vendor instructions [https://www.netscaler.com/blog/news/cve-2023-4966-critical-security-update-now-available-for-netscaler-adc-and-netscaler-gateway/] OR discontinue use of the product if mitigations are unavailable.",
  "cisaVulnerabilityName": "Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability",
  "descriptions": [
    {
      "lang": "en",
      "value": "Sensitive information disclosure\u00a0in NetScaler ADC and NetScaler Gateway when configured as a\u00a0Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy)\u00a0or\u00a0AAA \u202fvirtual\u202fserver.\u00a0\n\n\n\n"
    },
    {
      "lang": "es",
      "value": "Divulgaci\u00f3n de informaci\u00f3n confidencial en NetScaler ADC y NetScaler Gateway cuando se configura como Gateway (servidor virtual VPN, ICA Proxy, CVPN, RDP Proxy) o servidor \"virtual\" AAA."
    }
  ],
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        "type": "Primary",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH"
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        "exploitabilityScore": 3.9,
        "impactScore": 3.6
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          "privilegesRequired": "NONE",
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          "scope": "UNCHANGED",
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          "baseScore": 9.4,
          "baseSeverity": "CRITICAL"
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        "exploitabilityScore": 3.9,
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      }
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  "references": [
    {
      "url": "http://packetstormsecurity.com/files/175323/Citrix-Bleed-Session-Token-Leakage-Proof-Of-Concept.html",
      "source": "secure@citrix.com"
    },
    {
      "url": "https://support.citrix.com/article/CTX579459",
      "source": "secure@citrix.com",
      "tags": [
        "Vendor Advisory"
      ]
    }
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}