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CVE-2026-54402CRITICAL· 9.9MITRENVD대응게시일: 2026. 07. 02.수정일: 2026. 07. 10.CNA: support@hackerone.comAnalyzed

A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in UniFi OS t

RCE

위협 신호 · CVSS · EPSS · KEV

시급 검토· 이론 심각도 Critical
CVSS
9.9critical

이론적 심각도 점수

EPSS
1.2%상위 35.5%

30일 내 악용 확률 예측

KEV
미등재

실측 악용 기록 없음

권장 대응 기한14일 이내CISA SSVC 기준

2주 이내 패치 — 우선 조치 대상

완전 장악외부 노출· KEV 미등재 · 자동화 어려움 · 완전 장악 · 외부 노출

CVSS 벡터 · 메트릭

악용 경로
공격 벡터네트워크
공격 복잡도낮음
필요 권한낮음
사용자 상호작용불필요
범위변경
영향
기밀성 영향높음
무결성 영향높음
가용성 영향높음
버전별 점수
CVSS 3.19.9CRITICAL· 악용성 3.1· 영향도 6
CVSS 3.18.8HIGH· 악용성 2.8· 영향도 5.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

약점 (CWE)

  • CWE-20

    부적절한 입력 검증 — 입력값 검증 부족으로 다양한 후속 공격에 노출.

  • CWE-77

    명령 인젝션 — 입력이 명령 문자열에 주입되어 의도치 않은 명령이 실행됨.

상세 설명

A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in UniFi OS to execute a Command Injection on the host device.

AI 심층 분석

공격 시나리오 · 재현 가능한 PoC 페이로드 · 즉시 적용 가능한 차단 패치를 한 번에 받아 보세요. 보안 운영팀이 그대로 점검·티켓팅에 쓸 수 있는 형태로 정리해 드립니다.

영향받는 제품·버전

  • ui unifi_os_server< 5.1.15
    other
  • ui unifi_dream_machine_firmware< 5.1.15
    other
  • ui unifi_dream_machine
    other
  • ui unifi_dream_machine_pro_firmware< 5.1.15
    other
  • ui unifi_dream_machine_pro
    other
  • ui unifi_dream_machine_special_edition_firmware< 5.1.15
    other
  • ui unifi_dream_machine_special_edition
    other
  • ui unifi_dream_machine_pro_max_firmware< 5.1.15
    other
  • ui unifi_dream_machine_pro_max
    other
  • ui unifi_dream_machine_beast_firmware< 5.1.15
    other
  • ui unifi_dream_machine_beast
    other
  • ui enterprise_fortress_gateway_firmware< 5.1.15
    other
  • ui enterprise_fortress_gateway
    other
  • ui unifi_dream_router_firmware< 5.1.15
    other
  • ui unifi_dream_router
    other
  • ui unifi_dream_wall_firmware< 5.1.15
    other
  • ui unifi_dream_wall
    other
  • ui unifi_dream_router_7_firmware< 5.1.15
    other
  • ui unifi_dream_router_7
    other
  • ui unifi_express_7_firmware< 5.1.15
    other
  • ui unifi_express_7
    other
  • ui unifi_cloudkey_firmware< 5.1.15
    other
  • ui unifi_cloudkey
    other
  • ui unifi_cloud_key_plus_firmware< 5.1.15
    other
  • ui unifi_cloud_key_plus
    other
  • ui unifi_cloudkey_enterprise_firmware< 5.1.15
    other
  • ui unifi_cloudkey_enterprise
    other
  • ui unifi_network_video_recorder_firmware< 5.1.15
    other
  • ui unifi_network_video_recorder
    other
  • ui unifi_network_video_recorder_pro_firmware< 5.1.15
    other
  • ui unifi_network_video_recorder_pro
    other
  • ui unifi_network_video_recorder_instant_firmware< 5.1.15
    other
  • ui unifi_network_video_recorder_instant
    other
  • ui enterprise_network_video_recorder_core_firmware< 5.1.15
    other
  • ui enterprise_network_video_recorder_core
    other
  • ui unifi_network_video_recorder_g2_firmware< 5.1.15
    other
  • ui unifi_network_video_recorder_g2
    other
  • ui unifi_network_video_recorder_g2_pro_firmware< 5.1.15
    other
  • ui unifi_network_video_recorder_g2_pro
    other
  • ui unifi_cloud_gateway_ultra_firmware< 5.1.15
    other
  • ui unifi_cloud_gateway_ultra
    other
  • ui unifi_cloud_gateway_max_firmware< 5.1.15
    other
  • ui unifi_cloud_gateway_max
    other
  • ui unifi_cloud_gateway_industrial_firmware< 5.1.15
    other
  • ui unifi_cloud_gateway_industrial
    other
  • ui unifi_cloud_gateway_fiber_firmware< 5.1.15
    other
  • ui unifi_cloud_gateway_fiber
    other
  • ui unas_2_firmware< 5.1.16
    other
  • ui unas_2
    other
  • ui unas_4_firmware< 5.1.16
    other
  • ui unas_4
    other
  • ui unas_pro_firmware< 5.1.16
    other
  • ui unas_pro
    other
  • ui unas_pro_4_firmware< 5.1.16
    other
  • ui unas_pro_4
    other
  • ui unas_pro_8_firmware< 5.1.16
    other
  • ui unas_pro_8
    other
  • ui enterprise_firewall_core_firmware< 5.1.18
    other
  • ui enterprise_firewall_core
    other
  • ui unifi_dream_router_5g_max_firmware< 5.1.15
    other
  • ui unifi_dream_router_5g_max
    other
  • ui enterprise_network_video_recorder_firmware< 5.1.15
    other
  • ui enterprise_network_video_recorder
    other

영향받는 구성 (CPE) 60

  • ui unifi_os_server≤ 5.1.15cpe:2.3:a:ui:unifi_os_server:*:*:*:*:*:*:*:*
  • ui unifi_dream_machine_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_dream_machine_firmware:*:*:*:*:*:*:*:*
  • ui unifi_dream_machinecpe:2.3:h:ui:unifi_dream_machine:-:*:*:*:*:*:*:*
  • ui unifi_dream_machine_pro_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_dream_machine_pro_firmware:*:*:*:*:*:*:*:*
  • ui unifi_dream_machine_procpe:2.3:h:ui:unifi_dream_machine_pro:-:*:*:*:*:*:*:*
  • ui unifi_dream_machine_special_edition_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_dream_machine_special_edition_firmware:*:*:*:*:*:*:*:*
  • ui unifi_dream_machine_special_editioncpe:2.3:h:ui:unifi_dream_machine_special_edition:-:*:*:*:*:*:*:*
  • ui unifi_dream_machine_pro_max_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_dream_machine_pro_max_firmware:*:*:*:*:*:*:*:*
  • ui unifi_dream_machine_pro_maxcpe:2.3:h:ui:unifi_dream_machine_pro_max:-:*:*:*:*:*:*:*
  • ui unifi_dream_machine_beast_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_dream_machine_beast_firmware:*:*:*:*:*:*:*:*
  • ui unifi_dream_machine_beastcpe:2.3:h:ui:unifi_dream_machine_beast:-:*:*:*:*:*:*:*
  • ui enterprise_fortress_gateway_firmware≤ 5.1.15cpe:2.3:o:ui:enterprise_fortress_gateway_firmware:*:*:*:*:*:*:*:*
  • ui enterprise_fortress_gatewaycpe:2.3:h:ui:enterprise_fortress_gateway:-:*:*:*:*:*:*:*
  • ui unifi_dream_router_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_dream_router_firmware:*:*:*:*:*:*:*:*
  • ui unifi_dream_routercpe:2.3:h:ui:unifi_dream_router:-:*:*:*:*:*:*:*
  • ui unifi_dream_wall_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_dream_wall_firmware:*:*:*:*:*:*:*:*
  • ui unifi_dream_wallcpe:2.3:h:ui:unifi_dream_wall:-:*:*:*:*:*:*:*
  • ui unifi_dream_router_7_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_dream_router_7_firmware:*:*:*:*:*:*:*:*
  • ui unifi_dream_router_7cpe:2.3:h:ui:unifi_dream_router_7:-:*:*:*:*:*:*:*
  • ui unifi_express_7_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_express_7_firmware:*:*:*:*:*:*:*:*
  • ui unifi_express_7cpe:2.3:h:ui:unifi_express_7:-:*:*:*:*:*:*:*
  • ui unifi_cloudkey_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_cloudkey_firmware:*:*:*:*:*:*:*:*
  • ui unifi_cloudkeycpe:2.3:h:ui:unifi_cloudkey:-:*:*:*:*:*:*:*
  • ui unifi_cloud_key_plus_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_cloud_key_plus_firmware:*:*:*:*:*:*:*:*
  • ui unifi_cloud_key_pluscpe:2.3:h:ui:unifi_cloud_key_plus:-:*:*:*:*:*:*:*
  • ui unifi_cloudkey_enterprise_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_cloudkey_enterprise_firmware:*:*:*:*:*:*:*:*
  • ui unifi_cloudkey_enterprisecpe:2.3:h:ui:unifi_cloudkey_enterprise:-:*:*:*:*:*:*:*
  • ui unifi_network_video_recorder_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_network_video_recorder_firmware:*:*:*:*:*:*:*:*
  • ui unifi_network_video_recordercpe:2.3:h:ui:unifi_network_video_recorder:-:*:*:*:*:*:*:*
  • ui unifi_network_video_recorder_pro_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_network_video_recorder_pro_firmware:*:*:*:*:*:*:*:*
  • ui unifi_network_video_recorder_procpe:2.3:h:ui:unifi_network_video_recorder_pro:-:*:*:*:*:*:*:*
  • ui unifi_network_video_recorder_instant_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_network_video_recorder_instant_firmware:*:*:*:*:*:*:*:*
  • ui unifi_network_video_recorder_instantcpe:2.3:h:ui:unifi_network_video_recorder_instant:-:*:*:*:*:*:*:*
  • ui enterprise_network_video_recorder_core_firmware≤ 5.1.15cpe:2.3:o:ui:enterprise_network_video_recorder_core_firmware:*:*:*:*:*:*:*:*
  • ui enterprise_network_video_recorder_corecpe:2.3:h:ui:enterprise_network_video_recorder_core:-:*:*:*:*:*:*:*
  • ui unifi_network_video_recorder_g2_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_network_video_recorder_g2_firmware:*:*:*:*:*:*:*:*
  • ui unifi_network_video_recorder_g2cpe:2.3:h:ui:unifi_network_video_recorder_g2:-:*:*:*:*:*:*:*
  • ui unifi_network_video_recorder_g2_pro_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_network_video_recorder_g2_pro_firmware:*:*:*:*:*:*:*:*
  • ui unifi_network_video_recorder_g2_procpe:2.3:h:ui:unifi_network_video_recorder_g2_pro:-:*:*:*:*:*:*:*
  • ui unifi_cloud_gateway_ultra_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_cloud_gateway_ultra_firmware:*:*:*:*:*:*:*:*
  • ui unifi_cloud_gateway_ultracpe:2.3:h:ui:unifi_cloud_gateway_ultra:-:*:*:*:*:*:*:*
  • ui unifi_cloud_gateway_max_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_cloud_gateway_max_firmware:*:*:*:*:*:*:*:*
  • ui unifi_cloud_gateway_maxcpe:2.3:h:ui:unifi_cloud_gateway_max:-:*:*:*:*:*:*:*
  • ui unifi_cloud_gateway_industrial_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_cloud_gateway_industrial_firmware:*:*:*:*:*:*:*:*
  • ui unifi_cloud_gateway_industrialcpe:2.3:h:ui:unifi_cloud_gateway_industrial:-:*:*:*:*:*:*:*
  • ui unifi_cloud_gateway_fiber_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_cloud_gateway_fiber_firmware:*:*:*:*:*:*:*:*
  • ui unifi_cloud_gateway_fibercpe:2.3:h:ui:unifi_cloud_gateway_fiber:-:*:*:*:*:*:*:*
  • ui unas_2_firmware≤ 5.1.16cpe:2.3:o:ui:unas_2_firmware:*:*:*:*:*:*:*:*
  • ui unas_2cpe:2.3:h:ui:unas_2:-:*:*:*:*:*:*:*
  • ui unas_4_firmware≤ 5.1.16cpe:2.3:o:ui:unas_4_firmware:*:*:*:*:*:*:*:*
  • ui unas_4cpe:2.3:h:ui:unas_4:-:*:*:*:*:*:*:*
  • ui unas_pro_firmware≤ 5.1.16cpe:2.3:o:ui:unas_pro_firmware:*:*:*:*:*:*:*:*
  • ui unas_procpe:2.3:h:ui:unas_pro:-:*:*:*:*:*:*:*
  • ui unas_pro_4_firmware≤ 5.1.16cpe:2.3:o:ui:unas_pro_4_firmware:*:*:*:*:*:*:*:*
  • ui unas_pro_4cpe:2.3:h:ui:unas_pro_4:-:*:*:*:*:*:*:*
  • ui unas_pro_8_firmware≤ 5.1.16cpe:2.3:o:ui:unas_pro_8_firmware:*:*:*:*:*:*:*:*
  • ui unas_pro_8cpe:2.3:h:ui:unas_pro_8:-:*:*:*:*:*:*:*
  • ui enterprise_firewall_core_firmware≤ 5.1.18cpe:2.3:o:ui:enterprise_firewall_core_firmware:*:*:*:*:*:*:*:*
  • ui enterprise_firewall_corecpe:2.3:h:ui:enterprise_firewall_core:-:*:*:*:*:*:*:*
  • ui unifi_dream_router_5g_max_firmware≤ 5.1.15cpe:2.3:o:ui:unifi_dream_router_5g_max_firmware:*:*:*:*:*:*:*:*

참고 자료 1

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