Vulnerability Intelligence Report
IGEL OS Use of a Key Past its Expiration Date Vulnerability
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.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
4.6
MEDIUM
Exploitability:1.0
Impact Score:3.6
EPSS Probability:3.53%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
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SSVC Action
—
Weaknesses (CWE)
CWE-347 ↗CWE-347 Improper Verification of Cryptographic Signature
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| igel | igel_os | all |
| microsoft | windows_10_1507 | all |
| microsoft | windows_10_1607 | all |
| microsoft | windows_10_1809 | all |
| microsoft | windows_10_21h2 | all |
| microsoft | windows_10_22h2 | all |
| microsoft | windows_11_22h2 | all |
| microsoft | windows_11_23h2 | all |
| microsoft | windows_11_24h2 | all |
| microsoft | windows_11_25h2 | all |
| microsoft | windows_server_2012 | r2 |
| microsoft | windows_server_2016 | all |
| microsoft | windows_server_2019 | all |
| microsoft | windows_server_2022 | all |
| microsoft | windows_server_2022_23h2 | all |
| microsoft | windows_server_2025 | all |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | MITRE Corporation · N/A · USA |
| Reserved | 2025-05-11T00:00:00 |
| Published | 2025-06-05T00:00:00 |
| Last Updated | 2026-02-26T17:51:07 |
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