CVE-2026-20230는 Cisco Cisco Unified Communications Manager, unified communications manager에서 확인된 높음 등급 보안 취약점입니다. 공개 데이터에 표시된 영향 버전은 >= 14, >= 14SU1, >= 14SU2, >= 14SU3, >= 15, >= 15SU1, >= 14SU4, >= 14SU4a, >= 15SU1a, >= 15SU2, >= 15.0.1.13010-1, >= 15.0.1.13011-1, >= 15.0.1.13012-1, >= 15.0.1.13013-1, >= 15.0.1.13014-1, >= 15.0.1.13015-1, >= 15.0.1.13016-1, >= 15.0.1.13017-1, >= 15SU3a, >= 14SU5입니다. CVSS 기본 점수는 8.6점입니다. CISA의 실제 악용 취약점 목록(KEV)에 등록돼 있어 우선 확인이 필요합니다.
NVD 영문 원문의 세부 내용은 한국어 설명으로 순차 보강 중입니다. 보강 전에는 제품·위험도·실제 악용 여부처럼 공개 데이터로 확인된 정보만 표시합니다.
영문 원문 보기
A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, remote attacker to conduct server-side request forgery (SSRF) attacks through an affected device. This vulnerability is due to improper input validation for specific HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to write files to the underlying operating system that could be used later to elev...
영향 제품·버전
제품 Cisco Unified Communications Manager, unified communications manager
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
조치 기한: 2026.06.28
해당사항 확인방법
Cisco Unified Communications Manager, unified communications manager의 현재 전체 버전이 공식 영향 범위(Cisco Unified Communications Manager, unified communications manager >= 14, >= 14SU1, >= 14SU2, >= 14SU3, >= 15, >= 15SU1, >= 14SU4, >= 14SU4a, >= 15SU1a, >= 15SU2, >= 15.0.1.13010-1, >= 15.0.1.13011-1, >= 15.0.1.13012-1, >= 15.0.1.13013-1, >= 15.0.1.13014-1, >= 15.0.1.13015-1, >= 15.0.1.13016-1, >= 15.0.1.13017-1, >= 15SU3a, >= 14SU5)에 포함되는지 확인합니다. OS를 선택하면 해당 OS의 제품·패키지·KB·APAR 확인 명령만 표시됩니다.
조치방안
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
조치 후 확인사항
패치 후 같은 명령으로 전체 버전을 다시 확인해 Cisco Unified Communications Manager, unified communications manager 14su6 기준을 충족하는지 확인합니다. 이어서 서버측 요청 위조(SSRF) 관련 오류·공격 흔적이 새로 발생하지 않는지 확인합니다.
