CVE-2026-6485
UEFI BIOS embedded Shell can be used to bypass Secure Boot
Description
UEFI BIOS embedded Shell could be used to bypass Secure Boot via shell commands or startup scripts.
INFO
Published Date :
Sept. 9, 2026, 4:19 a.m.
Last Modified :
Sept. 9, 2026, 4:19 a.m.
Remotely Exploit :
No
Source :
8338d8cb-57f7-4252-abc0-96fd13e98d21
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 8338d8cb-57f7-4252-abc0-96fd13e98d21 |
Solution
- Disable UEFI Shell if not needed.
- Restrict access to UEFI BIOS settings.
- Ensure Secure Boot is enabled and configured.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-6485.
| URL | Resource |
|---|---|
| https://www.insyde.com/security-pledge/sa-2026004/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-6485 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-6485
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-6485 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-6485 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by 8338d8cb-57f7-4252-abc0-96fd13e98d21
Sep. 09, 2026
Action Type Old Value New Value Added Description UEFI BIOS embedded Shell could be used to bypass Secure Boot via shell commands or startup scripts. Added CVSS V3.1 AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Added CWE CWE-489 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/6xxx/CVE-2026-6485.json">CVE-2026-6485</a> Added Reference https://www.insyde.com/security-pledge/sa-2026004/