최우선 대응긴급CISA KEV · 실제 악용 확인
CVE-2026-48558
SimpleHelp SimpleHelp 취약점
- 대응 우선순위
- 최우선
- CVSS
- 9.5
- EPSS
- 1.16% 백분위 63.6% · 2026.07.17 기준
- CISA KEV
- 등록
- 조치 기한
- 2026.07.02
- 공개일
- 2026.06.13
최우선 대응 판단
CISA KEV에 등록된 실제 악용 확인 취약점
실제 악용확인
EPSS1.16%
EPSS 백분위63.6%
설명
SimpleHelp versions 5.5.15 and prior and 6.0 pre-release versions contain an authentication bypass vulnerability in the OIDC authentication flow. When OIDC authentication is configured, identity tokens submitted during login are accepted without verifying their cryptographic signature. In a vulnerable configuration, a remote, unauthenticated attacker can submit a forged token containing arbitrary identity claims to obtain a fully authenticated technician session. In some configurations, this may also allow bypass of multi-factor authentication. No user interaction is required.
영향 제품·버전
제품 SimpleHelp SimpleHelp, simplehelp
영향 버전 SimpleHelp SimpleHelp, simplehelp 5.5.0, 6.0, < 5.5.16
수정 버전 SimpleHelp SimpleHelp, simplehelp 5.5.16
취약점 확인 및 조치방법
영향 여부, 우선 대응, 정식 해결과 결과 확인 절차를 요약합니다.
CISA 공식 요구조치
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: 2026.07.02SimpleHelp SimpleHelp, simplehelp의 현재 전체 버전이 공식 영향 범위(SimpleHelp SimpleHelp, simplehelp 5.5.0, 6.0, < 5.5.16)에 포함되는지 확인합니다. OS를 선택하면 해당 OS의 제품·패키지·KB·APAR 확인 명령만 표시됩니다.
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.
패치 후 같은 명령으로 전체 버전을 다시 확인해 SimpleHelp SimpleHelp, simplehelp 5.5.16 기준을 충족하는지 확인합니다. 이어서 암호화·인증서 취약점 관련 오류·공격 흔적이 새로 발생하지 않는지 확인합니다.
확인·조치·완료 확인제품·버전·노출 여부 확인부터 즉시 완화, 공식 조치와 완료 검증까지 실무 순서로 표시합니다.
취약점 확인 및 조치방법 보기 →기술 정보
CVSS 벡터 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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-347
KEV 등록일 2026.06.29
랜섬웨어 캠페인 사용 미확인
CISA 비고 https://simple-help.com/security/simplehelp-security-update-2026-05 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-48558
EPSS 데이터 기준일 2026.07.17