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A local privilege escalation vulnerability in the Microsoft Windows Graphics Device Interface (GDI) affects Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 and 2012 R2, Windows RT 8.1, and Windows 10 Gold, 1511, and 1607. Available reporting classifies the flaw as a use-after-free in the GDI code path associated with RemoveFontResourceExW. Successful exploitation requires a crafted local application and allows a local user to elevate privileges on the affected system. The vulnerability was observed in the wild as a post-compromise privilege-escalation component paired with document-based initial access exploits.
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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.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Windows local privilege escalation vulnerability involving a use-after-free in RemoveFontResourceExW.
A Windows privilege escalation vulnerability (referenced as an EoP used in the attack chain) leveraged after EPS code execution to elevate privileges and support delivery/execution of the SHIRIME payload.
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.