CVE-2015-5281
grub2: modules built in on EFI builds that allow loading arbitrary code, circumventing secure boot
Severity
LowRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · November 17, 2015
Updated · November 21, 2025
Description
It was discovered that grub2 builds for EFI systems contained modules that were not suitable to be loaded in a Secure Boot environment. An attacker could use this flaw to circumvent the Secure Boot mechanisms and load non-verified code. Attacks could use the boot menu if no password was set, or the grub2 configuration file if the attacker has root privileges on the system.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 2.0 · 2.6AV:L/AC:H/Au:N/C:P/I:P/A:N
CWE not specified