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GRUB2 Vulnerable to Out-of-Bounds Write via Network Boot Process in 'grub_strcpy()' Function

🗓️ 03 Mar 2026 00:00:00Reported by Broadcom Security ResponseType 
broadcom
 broadcom🔗 support.broadcom.com👁 11 Views

Grub flaw during network boot allows out-of-bounds write in grub_strcpy when copying an environment variable, risking execution.

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03 Mar 2026 19:55Current
6.5Medium risk
Vulners AI Score6.5
CVSS 3.17.6
EPSS0.00677
SSVC
GrubNetwork bootOut of boundsGrub strcpyEnvironment variableRemote execution
11