CVE-2023-33010
Zyxel Multiple Firewalls Buffer Overflow Vulnerability
- 대응 우선순위
- 최우선
- CVSS
- 9.8
- EPSS
- 28.8% 백분위 97.9% · 2026.06.27 기준
- CISA KEV
- 등록
- 조치 기한
- 2023.06.26
- 공개일
- 2023.05.24
CISA KEV에 등록된 실제 악용 확인 취약점
A buffer overflow vulnerability in the ID processing function in Zyxel ATP series firmware versions 4.32 through 5.36 Patch 1, USG FLEX series firmware versions 4.50 through 5.36 Patch 1, USG FLEX 50(W) firmware versions 4.25 through 5.36 Patch 1, USG20(W)-VPN firmware versions 4.25 through 5.36 Patch 1, VPN series firmware versions 4.30 through 5.36 Patch 1, ZyWALL/USG series firmware versions 4.25 through 4.73 Patch 1, could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and even a remote code execution on an affected device.
공급사 Zyxel
제품 Multiple Firewalls
영향 버전 4.32 through 5.36 Patch 1, 4.50 through 5.36 Patch 1, 4.25 through 5.36 Patch 1, 4.30 through 5.36 Patch 1, 4.25 through 4.73 Patch 1, >= 4.32 < 5.36, 5.36, >= 4.50 < 5.36, >= 4.25 < 5.36, >= 4.30 < 5.36, >= 4.25 < 4.73, 4.73
수정 버전 5.36, 4.73
Apply updates per vendor instructions.
조치 기한: 2023.06.26CVSS 벡터 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-120
KEV 등록일 2023.06.05
랜섬웨어 캠페인 사용 미확인
CISA 비고 https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-buffer-overflow-vulnerabilities-of-firewalls; https://nvd.nist.gov/vuln/detail/CVE-2023-33010
EPSS 데이터 기준일 2026.06.27