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CVE-2025-47827

MEDIUMCVSS 4.6/10Actively ExploitedEPSS 3.53%

Last modified

CVE-2025-47827 is a medium-severity vulnerability rated 4.6/10 on the CVSS scale. 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.. CISA has confirmed active exploitation in the wild. EPSS estimates a 3.53% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
4.6/10

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

EPSS Probability
3.53%

87.8th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .

Weakness Enumeration

Affected Software

VendorProductVersions
IgelIgel Os< 11.01.100
MicrosoftWindows 10 1507< 10.0.10240.21161
MicrosoftWindows 10 1607< 10.0.14393.8519
MicrosoftWindows 10 1809< 10.0.17763.7919
MicrosoftWindows 10 21h2< 10.0.19044.6456
MicrosoftWindows 10 22h2< 10.0.19045.6456
MicrosoftWindows 11 22h2< 10.0.22621.6060
MicrosoftWindows 11 23h2< 10.0.22631.6060
MicrosoftWindows 11 24h2< 10.0.26100.6899
MicrosoftWindows 11 25h2< 10.0.26200.6899
MicrosoftWindows Server 2012All versions
MicrosoftWindows Server 2012r2
MicrosoftWindows Server 2016< 10.0.14393.8519
MicrosoftWindows Server 2019< 10.0.17763.7919
MicrosoftWindows Server 2022< 10.0.20348.4294
MicrosoftWindows Server 2022 23h2< 10.0.25398.1913
MicrosoftWindows Server 2025< 10.0.26100.6899

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2025-47827?
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.
How severe is CVE-2025-47827?
CVE-2025-47827 has a CVSS score of 4.6/10 (MEDIUM severity). The EPSS model estimates a 3.53% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
How do I fix CVE-2025-47827?
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-2025-47827?

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

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Source: NVD / NIST