CVE-2009-4128
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.
Published:Nov 8, 2009
Last Modified:Apr 23, 2026
EPS:Dec 1, 2009
EPSS Score:0.00039
CVSS Score:7.2
Affected Products
Vendor
Product
Action
Vendor
Gnu
Product
Grub 2
Gnu
Grub 2
Exploits
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
