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RoguePlanet is an elevation-of-privilege vulnerability in the Microsoft Malware Protection Engine used by Microsoft Defender and other Microsoft antimalware products. Public reporting describes the flaw as a race-condition-style improper link resolution issue in mpengine.dll during Defender file scanning, allowing privileged file operations to be redirected to unintended resources. An attacker with low-privileged local access can exploit the condition to cause the engine, which runs with NT AUTHORITY\SYSTEM privileges, to operate on attacker-controlled link targets and escalate privileges. The issue affects Microsoft Malware Protection Engine versions prior to 1.1.26060.3008 and has been reported on fully updated Windows 10 and Windows 11 systems before the engine fix was released.
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No valid public exploits. Mallory filtered out 2 candidates 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.
155 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Previously disclosed Windows vulnerability referenced only in passing among earlier exploit publications.
An elevation-of-privilege vulnerability in Microsoft Defender, known as RoguePlanet, that Microsoft patched out-of-band after proof-of-concept code was posted publicly.
Race condition vulnerability in Microsoft Defender that allows privilege escalation to SYSTEM and arbitrary code execution on fully updated Windows 10 and Windows 11 systems.
A high-severity local privilege-escalation vulnerability in the Microsoft Malware Protection Engine used by Microsoft Defender. The article focuses on claims that Microsoft's patch and defense-in-depth changes for this flaw may have introduced new information-disclosure and disk-exhaustion issues.
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.