VULNERABILITY INTELLIGENCE
CVE-2009-4128
CVSS score7.2 HIGH
EPSS probability0.57%
CISA KEVNot currently listed
Published2009-12-01
Last modified2026-06-16
CVSS vectorAV:L/AC:L/Au:N/C:C/I:C/A:C
Description
GNU GRand Unified Bootloader (GRUB) 2 1.97 only compares the submitted portion of a password with the actual password, which makes it easier for physically proximate attackers to conduct brute force attacks and bypass authentication by submitting a password whose length is 1.
Weakness classification
- CWE-287: Improper Authentication