{"uuid": "486b19b9-cd8d-445b-8d07-eaa81d093b3f", "vulnerability": {"vulnId": "CVE-2023-6549", "altId": []}, "gcve": {"origin_uuid": "405284c2-e461-4670-8979-7fd2c9755a60", "object_uuid": "486b19b9-cd8d-445b-8d07-eaa81d093b3f"}, "status": {"exploited": true, "status_reason": "confirmed", "status_updated_at": "2024-01-17T00:00:00+00:00"}, "characteristics": {}, "timestamps": {"asserted_at": "2024-01-17T00:00:00Z", "recorded_at": "2026-02-02T12:25:39Z", "first_seen_at": "2024-01-17T00:00:00Z"}, "scope": {"notes": "KEV entry: Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability | Affected: Citrix / NetScaler ADC and NetScaler Gateway | Description: Citrix NetScaler ADC and NetScaler Gateway contain a buffer overflow vulnerability that allows for a denial-of-service when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server. | Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. | Due date: 2024-02-07 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549;   https://nvd.nist.gov/vuln/detail/CVE-2023-6549"}, "evidence": [{"type": "vendor_report", "source": "cisa-kev", "signal": "successful_exploitation", "confidence": 0.8, "details": {"cwes": ["CWE-119"], "feed": "CISA Known Exploited Vulnerabilities Catalog", "product": "NetScaler ADC and NetScaler Gateway", "due_date": "2024-02-07", "date_added": "2024-01-17", "vendorProject": "Citrix", "vulnerabilityName": "Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability", "knownRansomwareCampaignUse": "Unknown"}}], "references": [{"id": "CVE-2023-6549", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-6549"}]}