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CVE-2025-49730 is an elevation-of-privilege vulnerability in the Microsoft Windows QoS Scheduler Driver. The issue is described as a time-of-check time-of-use (TOCTOU) race condition in the Windows QoS Scheduler that can be triggered by a locally authorized attacker. Microsoft associated the flaw primarily with CWE-367, indicating a race between validation and subsequent use of a resource, and also referenced CWE-122. Successful exploitation can allow a low-privileged local attacker to gain elevated execution in the context of SYSTEM. Microsoft rated the vulnerability Important and assigned CVSS v3.1 7.8 with vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
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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 valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.