CVE-2023-27992
Zyxel Multiple NAS Devices Command Injection Vulnerability
- 대응 우선순위
- 최우선
- CVSS
- 9.8
- EPSS
- 84.3% 백분위 99.7% · 2026.06.27 기준
- CISA KEV
- 등록
- 조치 기한
- 2023.07.14
- 공개일
- 2023.06.19
CISA KEV에 등록된 실제 악용 확인 취약점
The pre-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to V5.21(AAZF.14)C0, NAS540 firmware versions prior to V5.21(AATB.11)C0, and NAS542 firmware versions prior to V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands remotely by sending a crafted HTTP request.
공급사 Zyxel
제품 Multiple Network-Attached Storage (NAS) Devices
영향 버전 < V5.21(AAZF.14)C0, < V5.21(AATB.11)C0, < V5.21(ABAG.11)C0, < 5.21\(aazf.14\)c0, < 5.21\(aatb.11\)c0, < 5.21\(abag.11\)c0
수정 버전 5.21\(aazf.14\)c0, 5.21\(aatb.11\)c0, 5.21\(abag.11\)c0
Apply updates per vendor instructions.
조치 기한: 2023.07.14CVSS 벡터 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-78
KEV 등록일 2023.06.23
랜섬웨어 캠페인 사용 미확인
CISA 비고 https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-pre-authentication-command-injection-vulnerability-in-nas-products; https://nvd.nist.gov/vuln/detail/CVE-2023-27992
EPSS 데이터 기준일 2026.06.27