Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network.
高危 CVSS 7.5
摘要
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network.
中文摘要建设中，暂以英文摘要呈现（DR-003 v2）。
深度研判 · 自动通道
该漏洞尚未生成深度研判报告（DR-003 v2 AI pipeline 建设中）。
受影响产品
- :
Lint 边界警告 (2)
以下是本次研判 lint 阶段发现的非阻塞性警告（如引用 URL 未在白名单内）。这些不影响漏洞条目可用性，仅为透明度披露（参 DR-002）。
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REF_URL_NOT_ALLOWLISTEDurl not in allowlist: https://www.vicarius.io/vsociety/posts/cve-2026-20921-detection-script-race-condition-vulnerability-in-windows-smb-server -
REF_URL_NOT_ALLOWLISTEDurl not in allowlist: https://www.vicarius.io/vsociety/posts/cve-2026-20921-remediation-script-race-condition-vulnerability-in-windows-smb-server
数据来源
- NVD DATABASE
原始链接
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20921 Vendor Advisory
- https://www.vicarius.io/vsociety/posts/cve-2026-20921-detection-script-race-condition-vulnerability-in-windows-smb-server
- https://www.vicarius.io/vsociety/posts/cve-2026-20921-remediation-script-race-condition-vulnerability-in-windows-smb-server
时间线
- nvd_ingest NVD