CVE-2022-28735
HIGH
7.8
CVSS Score
Published: July 20, 2023 at 12:22 AM UTC
Updated: June 17, 2026 at 04:38 AM UTC
1 product affected across 1 vendorGRUB2
Using GNU GRUB by GNU Project?
Get instant alerts when new vulnerabilities affect GNU GRUB - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit
Description
The GRUB2's shim_lock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded may lead to unverified code and modules to be loaded in GRUB2 breaking the secure boot trust-chain.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (3)
Issue TrackingThird Party Advisory
Source: [email protected]
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28735Mailing ListThird Party Advisory
Source: [email protected]
https://www.openwall.com/lists/oss-security/2022/06/07/5SSVC — Action Prioritization
SSVCNo known exploitNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card