Strix
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CVE-2026-47656

HIGHCVSS 7.9/10EPSS 0.30%

Last modified

CVE-2026-47656 is a high-severity vulnerability rated 7.9/10 on the CVSS scale. Protection mechanism failure in Windows Boot Manager allows an authorized attacker to bypass a security feature locally.. EPSS estimates a 0.30% chance of exploitation in the next 30 days.

Description

Protection mechanism failure in Windows Boot Manager allows an authorized attacker to bypass a security feature locally.

Metrics

CVSS 3.1
7.9/10

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

EPSS Probability
0.30%

22.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
MicrosoftWindows 10 1607< 10.0.14393.9234
MicrosoftWindows 10 1809< 10.0.17763.8880
MicrosoftWindows 10 21h2< 10.0.19044.7417
MicrosoftWindows 10 22h2< 10.0.19045.7417
MicrosoftWindows 11 23h2< 10.0.22631.7219
MicrosoftWindows 11 24h2< 10.0.26100.8655
MicrosoftWindows 11 25h2< 10.0.26200.8655
MicrosoftWindows 11 26h1< 10.0.28000.2269
MicrosoftWindows Server 2012All versions
MicrosoftWindows Server 2012r2
MicrosoftWindows Server 2016< 10.0.14393.9234
MicrosoftWindows Server 2019< 10.0.17763.8880
MicrosoftWindows Server 2022< 10.0.20348.5256
MicrosoftWindows Server 2025< 10.0.26100.32995

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-47656?
Protection mechanism failure in Windows Boot Manager allows an authorized attacker to bypass a security feature locally.
How severe is CVE-2026-47656?
CVE-2026-47656 has a CVSS score of 7.9/10 (HIGH severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.
How do I fix CVE-2026-47656?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-47656?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST