CVE-2020-25632
moderate-risk
Published 2021-03-03
A flaw was found in grub2 in versions prior to 2.06. The rmmod implementation allows the unloading of a module used as a dependency without checking if any other dependent module is still loaded leading to a use-after-free scenario. This could allow arbitrary code to be executed or a bypass of Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Do I need to act?
-
0.02% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.2/10
High
LOCAL
/ LOW complexity
Affected Products (20)
Affected Vendors
References (8)
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1879577
Third Party Advisory
https://security.gentoo.org/glsa/202104-05
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220325-0001/
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1879577
Third Party Advisory
https://security.gentoo.org/glsa/202104-05
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220325-0001/
45
/ 100
moderate-risk
Severity
25/34 · High
Exploitability
0/34 · Minimal
Exposure
20/34 · Moderate