📌 이 취약점에 대해 확인된 사실
전부 발행처가 발표한 값입니다. 우리가 계산하거나 판단한 숫자는 하나도 없습니다.
악용 여부
악용 확인
심각도 (발행처 발표값)
높음7.2
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
악용 확률 (EPSS)
3.6%
📄 원문 그대로
아래 문장은 전부 발행처가 쓴 것입니다. 번역하지 않습니다 — 보안 문서의 오역은 조치를 바꿉니다.
취약점 설명 (NVD)
ScreenConnect versions 25.2.3 and earlier versions may be susceptible to a ViewState code injection attack. ASP.NET Web Forms use ViewState to preserve page and control state, with data encoded using Base64 protected by machine keys. It is important to note that to obtain these machine keys, privileged system level access must be obtained. If these machine keys are compromised, attackers could create and send a malicious ViewState to the website, potentially leading to remote code execution on the server. The risk does not originate from a vulnerability introduced by ScreenConnect, but from platform level behavior. This had no direct impact to ScreenConnect Client. ScreenConnect 2025.4 patch disables ViewState and removes any dependency on it.
CISA 원문
ConnectWise ScreenConnect contains an improper authentication vulnerability. This vulnerability could allow a ViewState code injection attack, which could allow remote code execution if machine keys are compromised.— CISA KEV · shortDescription 원문
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.— CISA KEV · requiredAction 원문
악용 확률 변화
우리가 매일 저장한 EPSS 스냅샷입니다. 원본은 전날 값만 주므로, 이 표는 수집을 시작한 이후만 보여줍니다.
| 기준일 | 확률 | 백분위 |
|---|---|---|
| 2026-11-02 | 3.60% | 89.5% |
| 2026-11-01 | 3.60% | 89.5% |
| 2026-10-31 | 3.60% | 89.5% |
| 2026-10-30 | 3.60% | 89.4% |
| 2026-10-29 | 3.60% | 89.4% |
| 2026-10-28 | 3.60% | 89.4% |
| 2026-10-27 | 3.60% | 89.4% |
| 2026-10-26 | 3.60% | 89.4% |
| 2026-10-25 | 3.54% | 89.2% |
| 2026-10-24 | 3.54% | 89.2% |
| 2026-10-23 | 3.54% | 89.2% |
| 2026-10-22 | 3.54% | 89.2% |
| 2026-10-21 | 3.54% | 89.2% |
| 2026-10-20 | 3.54% | 89.1% |
🧩 같은 약점 유형 — CWE-502
같은 분류의 다른 취약점입니다. 같은 실수가 제품을 가리지 않고 반복됩니다.