CVE-2020-25647
CVE-2020-25647
Vexday Risk Score
3Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS —EPSS 0.8%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Lifecycle
03 Mar 2021Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
A flaw was found in grub2 in versions prior to 2.06. During USB device initialization, descriptors are read with very little bounds checking and assumes the USB device is providing sane values. If properly exploited, an attacker could trigger memory corruption leading to arbitrary code execution allowing a bypass of the Secure Boot mechanism. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Affected products
n/a · grub2