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CVE-2026-62893 is a use-after-free vulnerability in the TFTP Server component of Windows Deployment Services (WDS). An unauthenticated remote attacker can send a specially crafted network packet to a vulnerable WDS TFTP service and execute code in the context of the affected service. The vulnerability affects unpatched WDS installations on Windows 10 versions 1607 and 1809 and Windows Server 2012, 2012 R2, 2016, 2019, 2022, and 2025.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
27 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical use-after-free vulnerability permitting remote code execution in Windows Deployment Services.
A Critical-severity remote code execution vulnerability in Windows Deployment Services TFTP Server. It requires no authentication or user interaction and is highlighted as more likely to be exploited within the next 30 days.
A remote code execution vulnerability in the TFTP server component of Windows Deployment Services (WDS), addressed in Microsoft August 2026 Patch Tuesday.
A vulnerability identified as CVE-2026-62893, described in the content as affecting the TFTP server and having a CVSS score of 9.8. The discussion suggests it was patched in the referenced Microsoft update cycle and may have triggered BCD file updates.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.