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CVE-2025-7026 is a Gigabyte UEFI firmware vulnerability in a Software SMI handler reachable via SwSmiInputValue 0xB2. A local attacker can control the RBX register, and the SMM code uses RBX as an unchecked pointer inside the CommandRcx0 function. When attacker-controlled memory referenced by RBX contains expected marker values such as '$DB$' or '2DB$', the function proceeds to perform arbitrary writes into System Management RAM (SMRAM). Because the flaw occurs in SMM, exploitation can enable execution in System Management Mode and compromise firmware trust boundaries below the operating system. CERT/CC grouped this issue with other Gigabyte UEFI SMM vulnerabilities disclosed by Binarly.
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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.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.