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CVE-2024-45775 is a NULL pointer dereference flaw in GRUB2 command handling. The grub_extcmd_dispatcher() function allocates the GRUB argument list through grub_arg_list_alloc() but does not verify whether the allocation succeeded. If allocation fails, a NULL pointer is passed to parse_option(), which can crash GRUB and, in rare circumstances, corrupt interrupt-vector-table data.
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No public exploit code observed for this vulnerability.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability addressed by the referenced TuxCare CentOS 8.4 security update; no technical details are provided.
A vulnerability addressed by the EulerOS SA-2026-3507 GRUB2 package update.
A vulnerability addressed by the EulerOS SA-2026-3420 security update affecting listed GRUB2 packages.
A GRUB2 missing NULL-check after memory allocation in grub_extcmd_dispatcher() that can cause a crash or possible data corruption.
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.