CVE-2021-20225
moderate-risk
Published 2021-03-03
A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Do I need to act?
-
0.07% 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
6
CVSS 6.7/10
Medium
LOCAL
/ LOW complexity
Affected Products (20)
Affected Vendors
References (8)
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1924696
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=1924696
Third Party Advisory
https://security.gentoo.org/glsa/202104-05
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220325-0001/
41
/ 100
moderate-risk
Severity
21/34 · High
Exploitability
0/34 · Minimal
Exposure
20/34 · Moderate