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CVE-2026-73018 is a critical heap-based buffer overflow vulnerability in Microsoft Graphic Fonts. An unauthenticated attacker can craft a malicious file that, when opened by a user, triggers the flaw and enables remote code execution in the context of the affected application or user.
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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.
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 heap-based buffer-overflow vulnerability in Graphic Fonts that permits an unauthenticated attacker to execute code remotely over a network.
A critical heap-based buffer overflow (CWE-122) in Microsoft Graphic Fonts that permits remote code execution when a user opens an attacker-crafted file.
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.