The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applicationsUpgrade Centos:7
grub2-efi-x64-modules
to version 1:2.02-0.87.el7_9.2 or higher.
Note: Versions mentioned in the description apply only to the upstream grub2-efi-x64-modules
package and not the grub2-efi-x64-modules
package as distributed by Centos
.
See How to fix?
for Centos:7
relevant fixed versions and status.
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.