SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2022-30203

Windows Boot Manager Security Feature Bypass Vulnerability

HIGH 7.4EPSS 1.49%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.49%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Windows Boot Manager Security Feature Bypass Vulnerability

CVSS 3.1
7.4 HIGHCVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS
1.49% probability · 74th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-863
Affected
microsoft/windows 10 · microsoft/windows 11 · microsoft/windows 7 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows server 2016 · microsoft/windows server 2019 · microsoft/windows server 2022
Source
secure@microsoft.com
EPSS trend
0%3%5%26 October 2026: 1.49%26 October 202626 October 2026

EPSS 1.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.