Critical severity9.8NVD Advisory· Published Aug 11, 2026· Updated Sep 2, 2026
CVE-2026-62893
CVE-2026-62893
Description
Use after free in Windows Deployment Services allows an unauthorized attacker to execute code over a network.
Affected products
11cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*+ 1 more
- cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*range: <10.0.14393.9418
- cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*range: <10.0.14393.9418
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*+ 1 more
- cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*range: <10.0.17763.9115
- cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*range: <10.0.17763.9115
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*Range: <10.0.14393.9418
- cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*Range: <10.0.17763.9115
- cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*Range: <10.0.20348.5440
- cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*Range: <10.0.26100.33222
Patches
Vulnerability mechanics
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62893nvdPatchVendor Advisory
News mentions
13- Microsoft Shatters Patch Tuesday Record With 974 CVE Fixes in September 2026Infosecurity Magazine · Sep 9, 2026
- Patch Tuesday: Update now to fix 421 flaws, including three zero-daysMalwarebytes Labs · Aug 12, 2026
- Microsoft Patch Tuesday for August 2026 — Snort rules and prominent vulnerabilitiesCisco Talos Intelligence · Aug 11, 2026
- 421 bugs in Microsoft's Patch Tuesday release, and the Norks have already attacked oneThe Register Security · Aug 11, 2026
- Patch Tuesday - August 2026Rapid7 Blog · Aug 11, 2026
- Microsoft Patches 398 Flaws Including a Windows Driver Zero-Day Under Active AttackThe Hacker News · Aug 11, 2026
- August 2026 Patch Tuesday: Microsoft Fixes 421 CVEs, One Exploited Zero-DaySecurityWeek · Aug 11, 2026
- Microsoft's August 2026 Patch Tuesday addresses 398 CVEs (CVE-2026-68820)Tenable Blog · Aug 11, 2026
- Microsoft Patch Tuesday Update August 2026 – 394 Vulnerabilities Fixed, Including 3 Zero-DaysCyber Security News · Aug 11, 2026
- Microsoft Windows Server 2012: 25 Vulnerabilities Disclosed, Zero-Day ExploitedVypr Intelligence · Aug 11, 2026
- Microsoft Windows Server 2016: 25 Vulnerabilities Disclosed, Including Actively Exploited Zero-DayVypr Intelligence · Aug 11, 2026
- ZDI-26-544: Microsoft Windows Deployment Services Use-After-Free Remote Code Execution VulnerabilityZero Day Initiative · Aug 11, 2026
- August 2026 Patch Tuesday: One Exploited Zero-Day and 62 Critical Vulnerabilities Among 415 CVEsCrowdStrike Blog