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CVE-2026-44815 is a critical stack-based buffer overflow in the Windows DHCP Client Service. A malicious DHCP server can send crafted response data to a vulnerable DHCP client and trigger the overflow when data is processed through the DhcpGetOriginalSubnetMask API path. Microsoft rates the flaw CVSS 3.1 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
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.
19 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical remote code execution vulnerability in the Windows DHCP Client Service, exploitable through specially crafted network traffic.
Критическая RCE-уязвимость в DHCP Client, не требующая учетных данных или взаимодействия с пользователем.
DHCP Client Service remote code execution vulnerability with a high CVSS score of 9.8.
A critical stack-based buffer overflow in Windows DHCP Client that requires no credentials or user action and can lead to full system compromise via crafted network traffic.
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.