📌 이 취약점에 대해 확인된 사실
전부 발행처가 발표한 값입니다. 우리가 계산하거나 판단한 숫자는 하나도 없습니다.
악용 여부
악용 확인
심각도 (발행처 발표값)
심각10.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
악용 확률 (EPSS)
91.8%
📄 원문 그대로
아래 문장은 전부 발행처가 쓴 것입니다. 번역하지 않습니다 — 보안 문서의 오역은 조치를 바꿉니다.
취약점 설명 (NVD)
May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and fixed after the was disclosed in February 2026. This new advisory is for a new vulnerability in the control connection handshaking. The section of this advisory includes Show Control Connections guidance to help with system checks. A vulnerability in the peering authentication in Cisco Catalyst SD-WAN Controller, formerly SD-WAN vSmart, Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, and Cisco Catalyst SD-WAN Validator, formerly SD-WAN vBond, could allow an unauthenticated, remote attacker to bypass authentication and obtain administrative privileges on an affected system. This vulnerability exists because the peering authentication mechanism in an affected system is not working properly. An attacker could exploit this vulnerability by sending crafted requests to the affected system. A successful exploit could allow the attacker to log in to an affected Cisco Catalyst SD-WAN Controller as an internal, high-privileged, non-root user account. Using this account, the attacker could access NETCONF, which would then allow the attacker to manipulate network configuration for the SD-WAN fabric.
CISA 원문
Cisco Catalyst SD-WAN Controller & Manager contain an authentication bypass vulnerability that allows an unauthenticated, remote attacker to bypass authentication and obtain administrative privileges on an affected system.— CISA KEV · shortDescription 원문
Please adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlined in CISA’s Emergency Directive 26-03 (URL listed below in Notes) and CISA’s Hunt & Hardening Guidance for Cisco SD-WAN Devices (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.— 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 | 91.82% | 99.8% |
| 2026-11-01 | 91.82% | 99.8% |
| 2026-10-31 | 91.82% | 99.8% |
| 2026-10-30 | 91.82% | 99.8% |
| 2026-10-29 | 91.82% | 99.8% |
| 2026-10-28 | 91.82% | 99.8% |
| 2026-10-27 | 91.82% | 99.8% |
| 2026-10-26 | 91.82% | 99.8% |
| 2026-10-25 | 91.82% | 99.8% |
| 2026-10-24 | 91.82% | 99.8% |
| 2026-10-23 | 91.82% | 99.8% |
| 2026-10-22 | 91.82% | 99.8% |
| 2026-10-21 | 91.82% | 99.8% |
| 2026-10-20 | 91.82% | 99.8% |
🧩 같은 약점 유형 — CWE-287
같은 분류의 다른 취약점입니다. 같은 실수가 제품을 가리지 않고 반복됩니다.