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CVE-2024-45776 is an integer-overflow vulnerability in GRUB2's gettext catalog loader, specifically grub_mofile_open(). While processing a crafted GNU gettext message catalog, GRUB2 does not validate an overflow in its internal buffer-size calculation. The wrapped allocation size can result in heap-based out-of-bounds reads and writes.
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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.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability addressed by the EulerOS SA-2026-3420 security update affecting listed GRUB2 packages.
A vulnerability addressed by the EulerOS SA-2026-3507 GRUB2 package update.
A GRUB2 gettext integer overflow in .mo file handling that can cause heap out-of-bounds reads and writes, potentially leaking or overwriting sensitive data.
A GRUB gettext .mo file parsing integer overflow that can cause heap out-of-bounds reads and writes, potentially leaking or overwriting sensitive data.
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.