Which products and versions are affected by CVE-2025-47827?

Affected: Igel OS; Windows 10 1507 (Microsoft); Windows 10 1607 (Microsoft), among others. The full list is in the CVE brief.

Is CVE-2025-47827 being exploited in the wild?

It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Oct 14, 2025.

Is CVE-2025-47827 in the CISA KEV catalog?

Yes. It was added on Oct 14, 2025 with a federal remediation due date of Nov 4, 2025.

Is there a public exploit for CVE-2025-47827?

Public exploit code is available.

Is there a fix for CVE-2025-47827?

Fixed versions are available, including Igel OS 11.01.100, Windows 10 1507 10.0.10240.21161, Windows 10 1607 10.0.14393.8519.

How urgently should CVE-2025-47827 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2025-47827

MediumExploitedPublic exploit

MITRE CVE-2025-47827: Secure Boot bypass in IGEL OS before 11

Published Oct 14, 2025 · Updated Feb 26, 2026

Key Facts

Patch immediately

CVE-2025-47827 is a medium-severity vulnerability (CVSS 4.6 v3.1) affecting Igel OS, Windows 10 1507 (Microsoft), Windows 10 1607 (Microsoft) and 13 more products.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Oct 14, 2025. Public exploit code is available.
EPSS estimates a 4.9% probability of exploitation in the next 30 days.
Fixed versions are available, including Igel OS 11.01.100, Windows 10 1507 10.0.10240.21161, Windows 10 1607 10.0.14393.8519.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

4.6

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

EPSS (30-day exploit likelihood)

4.9%

Higher than 92.0% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2025-47827 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

In IGEL OS before 11, Secure Boot can be bypassed because the igel-flash-driver module improperly verifies a cryptographic signature. Ultimately, a crafted root filesystem can be mounted from an unverified SquashFS image.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
CISA KEV	Oct 14, 2025	Nov 4, 2025	Not reported
Industry KEV feed	Oct 14, 2025	Nov 4, 2025	Not reported
CIRCL KEV	Oct 14, 2025	Nov 4, 2025	Not reported
ENISA EUVD	Oct 14, 2025	n/a	Not reported

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Affected Products

20 affected entries in total

Product	Affected versions	Fixed in
Igel OSIgel	See advisory	11.01.100
Windows 10 1507Microsoft	See advisory	10.0.10240.21161
Windows 10 1607Microsoft	See advisory	10.0.14393.8519
Windows 10 1809Microsoft	See advisory	10.0.17763.7919
Windows 10 21h2Microsoft	See advisory	10.0.19044.6456

11 more affected products in the full CVE brief

Patched Releases

Igel OS

11.01.100

Windows 10 1507

10.0.10240.21161

Windows 10 1607

10.0.14393.8519

Windows 10 1809

10.0.17763.7919

Windows 10 21h2

10.0.19044.6456

Windows 10 22h2

10.0.19045.6456

Windows 11 22h2

10.0.22621.6060

Windows 11 23h2

10.0.22631.6060

Windows 11 24h2

10.0.26100.6899

Windows 11 25h2

10.0.26200.6899

Windows Server 2016

10.0.14393.8519

Windows Server 2019

10.0.17763.7919

Windows Server 2022

10.0.20348.4294

Windows Server 2022 23h2

10.0.25398.1913

Windows Server 2025

10.0.26100.6899

Timeline

Publicly disclosed
Oct 14, 2025
Added to CISA KEV
Oct 14, 2025
Added to Industry KEV feed
Oct 14, 2025
Added to CIRCL KEV
Oct 14, 2025
Added to ENISA EUVD
Oct 14, 2025
Last updated
Feb 26, 2026

Weakness Type

CWE-347 Improper Verification of Cryptographic Signature

References

advisoryhttps://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-47827
exploithttps://github.com/Zedeldi/CVE-2025-47827
exploitVulnCheck exploitation report
exploitVulnCheck exploitation report
exploitVulnCheck exploitation report

3 more references in the full CVE brief

FAQ

Common Questions.

In IGEL OS before 11, Secure Boot can be bypassed because the igel-flash-driver module improperly verifies a cryptographic signature.
Affected: Igel OS; Windows 10 1507 (Microsoft); Windows 10 1607 (Microsoft), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Oct 14, 2025.
Yes. It was added on Oct 14, 2025 with a federal remediation due date of Nov 4, 2025.
Public exploit code is available.
Fixed versions are available, including Igel OS 11.01.100, Windows 10 1507 10.0.10240.21161, Windows 10 1607 10.0.14393.8519.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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