CVE-2025-6543
Citrix NetScaler ADC and Gateway Buffer Overflow Vulnerability
- 대응 우선순위
- 최우선
- CVSS
- 9.2
- EPSS
- 9.76% 백분위 94.9% · 2026.06.27 기준
- CISA KEV
- 등록
- 조치 기한
- 2025.07.21
- 공개일
- 2025.06.25
CISA KEV에 등록된 실제 악용 확인 취약점
Memory overflow vulnerability leading to unintended control flow and Denial of Service in NetScaler ADC and NetScaler Gateway when configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server
공급사 Citrix
제품 NetScaler ADC and Gateway
영향 버전 14.1, 13.1, 13.1 FIPS and NDcPP, >= 13.1 < 13.1-37.236, >= 13.1 < 13.1-59.19, >= 14.1 < 14.1-47.46
수정 버전 13.1-37.236, 13.1-59.19, 14.1-47.46
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
조치 기한: 2025.07.21CVSS 벡터 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE CWE-119
KEV 등록일 2025.06.30
랜섬웨어 캠페인 사용 미확인
CISA 비고 https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694788 ; https://www.netscaler.com/blog/news/netscaler-critical-security-updates-for-cve-2025-6543-and-cve-2025-5777/ ; https://nvd.nist.gov/vuln/detail/CVE-2025-6543
EPSS 데이터 기준일 2026.06.27