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CVE-2021-3418Not scoredCWE-281

CVE-2021-3418: Gnu grub2 vulnerability

Gnu · grub2

Affected: Gnu grub2 · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.5%probability of exploitation in the next 30 days
40th percentile
050100

Higher than 40% of scored CVEs

Not scored yet. The CVE record carries no CVSS score.

DescriptionCVE.org

If certificates that signed grub are installed into db, grub can be booted directly. It will then boot any kernel without signature validation. The booted kernel will think it was booted in secureboot mode and will implement lockdown, yet it could have been tampered. This flaw is a reintroduction of CVE-2020-15705 and only affects grub2 versions prior to 2.06 and upstream and distributions using the shim_lock mechanism.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • grub2Fixed in 2.06

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV
Not listed
Public check
No public nuclei template
Vendor
Gnu
Published
March 2021

CoverageNo articles yet

No CyberSIXT article names CVE-2021-3418 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References