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A vulnerability in the grub2 package before version 2.02-0.29 on Red Hat Enterprise Linux 7, when running on UEFI systems, allows local users or physically proximate attackers to bypass Secure Boot restrictions. This is achieved by leveraging crafted multiboot or multiboot2 modules in the GRUB configuration file, or by exploiting the boot menu, to execute code that has not been verified by Secure Boot.
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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 GRUB 2 Secure Boot bypass vulnerability on UEFI systems that allows local users to execute non-verified code via crafted multiboot or multiboot2 modules. In this content it is cited as an example of an older vulnerable second-stage loader trusted by an old shim.
A GRUB 2 Secure Boot bypass vulnerability that allows execution of non-verified code via crafted multiboot or multiboot2 modules on UEFI systems.
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.