📌 이 취약점에 대해 확인된 사실
전부 발행처가 발표한 값입니다. 우리가 계산하거나 판단한 숫자는 하나도 없습니다.
악용 여부
악용 확인
심각도 (발행처 발표값)
높음7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
악용 확률 (EPSS)
1.4%
📄 원문 그대로
아래 문장은 전부 발행처가 쓴 것입니다. 번역하지 않습니다 — 보안 문서의 오역은 조치를 바꿉니다.
취약점 설명 (NVD)
KNX devices that use KNX Connection Authorization and support Option 1 are, depending on the implementation, vulnerable to being locked and users being unable to reset them to gain access to the device. The BCU key feature on the devices can be used to create a password for the device, but this password can often not be reset without entering the current password. If the device is configured to interface with a network, an attacker with access to that network could interface with the KNX installation, purge all devices without additional security options enabled, and set a BCU key, locking the device. Even if a device is not connected to a network, an attacker with physical access to the device could also exploit this vulnerability in the same way.
CISA 원문
KNX Association KNX Protocol Connection Authorization Option 1 contains an overly restrictive account lockout mechanism vulnerability that could allow an attacker to purge all devices without additional security options enabled and set a BCU key to lock the device. — CISA KEV · shortDescription 원문
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.— 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 |
|---|---|---|
| 2026-11-03 | 1.36% | 71.8% |
| 2026-11-02 | 1.36% | 71.8% |
| 2026-11-01 | 1.36% | 71.8% |
| 2026-10-31 | 1.36% | 71.8% |
| 2026-10-30 | 1.36% | 71.8% |
| 2026-10-29 | 1.36% | 71.7% |
| 2026-10-28 | 1.36% | 71.7% |
| 2026-10-27 | 1.36% | 71.6% |
| 2026-10-26 | 1.36% | 71.6% |
| 2026-10-25 | 1.36% | 71.6% |
| 2026-10-24 | 1.29% | 70.1% |
| 2026-10-23 | 1.29% | 70.1% |
| 2026-10-22 | 1.29% | 70.1% |
| 2026-10-21 | 1.29% | 70.1% |
🧩 같은 약점 유형 — CWE-645
같은 분류의 다른 취약점입니다. 같은 실수가 제품을 가리지 않고 반복됩니다.