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CVE-2025-7027 is a Gigabyte UEFI firmware vulnerability in a Software SMI handler reachable via SwSmiInputValue 0xB2. The vulnerable logic allows a local attacker to control both the source and destination pointers used by the CommandRcx1 function. The write destination is derived from the unvalidated UEFI NVRAM variable SetupXtuBufferAddress, while the data written is read from an attacker-controlled pointer based on the RBX register. This results in a dual-pointer dereference condition that enables arbitrary memory writes into System Management RAM (SMRAM). Because the flaw occurs in SMM context, successful exploitation can corrupt or modify privileged SMM memory and code paths, enabling escalation into System Management Mode and broader firmware compromise.
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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.
2 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.