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CVE-2024-7344 is a Secure Boot bypass vulnerability in the Howyar UEFI Application Reloader, in both 32-bit and 64-bit variants, distributed with multiple system recovery products. The vulnerable application is signed by a trusted Microsoft UEFI certificate but uses a custom PE loader rather than the standard UEFI image-loading path. As a result, it loads and executes a UEFI binary from a hard-coded path without properly enforcing signature verification, allowing unsigned code to run in the UEFI environment despite Secure Boot being enabled. Because the vulnerable binary is itself trusted by platform firmware, an attacker can abuse it in a bring-your-own-vulnerable-bootloader scenario to subvert the boot chain before the operating system starts.
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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.
68 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A previously disclosed UEFI Secure Boot bypass vulnerability referenced as related background and defensive guidance.
Уязвимость в подписанном Microsoft UEFI-приложении Reloader, позволяющая обойти Secure Boot через подход BYOVB (bring your own vulnerable bootloader) и выполнить неподписанный код до запуска ОС.
Уязвимость в подписанном Microsoft UEFI-приложении Howyar Reloader, где кастомный PE-загрузчик не проверяет подписи и может загрузить произвольный UEFI-бинарник из cloak.dat, что позволяет обойти Secure Boot и выполнить код в контексте UEFI.
Security Feature Bypass / improper signature verification flaw in a Microsoft-signed UEFI application (Howyar Reloader) that allows loading arbitrary unsigned UEFI code, enabling a BYOVB Secure Boot bypass.
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.