CVE-2021-34527

설명

<p>A remote code execution vulnerability exists when the Windows Print Spooler service improperly performs privileged file operations. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p>UPDATE July 7, 2021: The security update for Windows Server 2012, Windows Server 2016 and Windows 10, Version 1607 have been released. Please see the Security Updates table for the applicable update for your system. We recommend th...

영향 제품·버전

공급사 Microsoft

제품 Windows

영향 버전 10.0.0, 6.3.0, 6.0.0, 6.1.0, 6.2.0, < 10.0.10240.18969, < 10.0.14393.4470, < 10.0.17763.2029, < 10.0.19042.1083, < 10.0.19044.1415, < 10.0.19045.2251, < 10.0.22000.318, < 10.0.22621.674, r2, < 10.0.20348.230

수정 버전 10.0.10240.18969, 10.0.14393.4470, 10.0.17763.2029, 10.0.19042.1083, 10.0.19044.1415, 10.0.19045.2251, 10.0.22000.318, 10.0.22621.674, 10.0.20348.230

조치 방법

• 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:H/I:H/A:H

CWE CWE-269

KEV 등록일 2021.11.03

랜섬웨어 캠페인 사용 확인됨

CISA 비고 Reference CISA's ED 21-04 (https://www.cisa.gov/news-events/directives/ed-21-04-mitigate-windows-print-spooler-service-vulnerability) for further guidance and requirements. Note: The due date for addressing this vulnerability aligns with the requirements outlined in ED 21-04. https://nvd.nist.gov/vuln/detail/CVE-2021-34527

EPSS 데이터 기준일 2026.06.27