최우선 대응보통CISA KEV · 실제 악용 확인

CVE-2026-20122

Cisco Catalyst SD-WAN Manager Incorrect Use of Privileged APIs Vulnerability

대응 우선순위: 최우선
CVSS: 5.4
EPSS: 7.02%
CISA KEV: 등록
조치 기한: 2026.04.23
공개일: 2026.02.26

최우선 대응 판단

CISA KEV에 등록된 실제 악용 확인 취약점

실제 악용확인

EPSS7.02%

EPSS 백분위93.4%

설명

A vulnerability in the API of Cisco Catalyst SD-WAN Manager could allow an authenticated, remote attacker to overwrite arbitrary files on the local file system. To exploit this vulnerability, the attacker must have valid read-only credentials with API access on the affected system. This vulnerability is due to improper file handling on the API interface of an affected system. An attacker could exploit this vulnerability by uploading a malicious file on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system and gain vmana...

영향 제품·버전

공급사 Cisco

제품 Catalyst SD-WAN Manger

영향 버전 20.1.12, 19.2.1, 18.4.4, 18.4.5, 20.1.1.1, 20.1.1, 19.3.0, 19.2.2, 19.2.099, 18.3.6, 18.3.7, 19.2.0, 18.3.8, 19.0.0, 19.1.0, 18.4.302, 18.4.303, 19.2.097, 19.2.098, 17.2.10

수정 버전 20.9.8.2, 20.12.5.3, 20.15.4.2, 20.18.2.1

조치 방법

CISA 공식 요구조치

Please adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlines 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.

조치 기한: 2026.04.23

공급사가 제공한 최신 보안 업데이트 적용
자사 보유 제품과 영향 버전의 일치 여부 확인
외부 노출 서비스와 비정상 인증·접속 로그 점검
패치가 어려우면 공급사 완화조치와 접근통제 적용

기술 정보

CVSS 벡터 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CWE CWE-648

KEV 등록일 2026.04.20

랜섬웨어 캠페인 사용 미확인

CISA 비고 CISA Mitigation Instructions: https://www.cisa.gov/news-events/directives/ed-26-03-mitigate-vulnerabilities-cisco-sd-wan-systems ; https://www.cisa.gov/news-events/directives/supplemental-direction-ed-26-03-hunt-and-hardening-guidance-cisco-sd-wan-systems ; https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v ; https://nvd.nist.gov/vuln/detail/CVE-2026-20122

EPSS 데이터 기준일 2026.06.27

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