CVE-2025-47827In IGEL OS before 11, Secure Boot can be bypassed because the igel-flash-driver module improperly verifies a cryptographic signature.
Updated under an hour ago ()
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It affects igel_os and 15 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Oct 14, 2025; federal agencies had to remediate by Nov 4, 2025. Treat that date as your deadline.
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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.
- CVSS
- 4.6 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-347
- Known exploited
- Added to CISA KEV Oct 14, 2025; federal remediation due Nov 4, 2025Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- EPSS (exploitation in the next 30 days)
- 4.93% (percentile 92)
- Assigned by
- mitre
- NVD analysis
- Analyzed
- Record last updated
- Feb 26, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
igel igel_os igel:igel_os | before 11.01.100 | NVD |
microsoft windows_10_1507 microsoft:windows_10_1507 | before 10.0.10240.21161; before 10.0.10240.21161 | NVD |
microsoft windows_10_1607 microsoft:windows_10_1607 | before 10.0.14393.8519; before 10.0.14393.8519 | NVD |
microsoft windows_10_1809 microsoft:windows_10_1809 | before 10.0.17763.7919; before 10.0.17763.7919 | NVD |
microsoft windows_10_21h2 microsoft:windows_10_21h2 | before 10.0.19044.6456 | NVD |
microsoft windows_10_22h2 microsoft:windows_10_22h2 | before 10.0.19045.6456 | NVD |
microsoft windows_11_22h2 microsoft:windows_11_22h2 | before 10.0.22621.6060 | NVD |
microsoft windows_11_23h2 microsoft:windows_11_23h2 | before 10.0.22631.6060 | NVD |
microsoft windows_11_24h2 microsoft:windows_11_24h2 | before 10.0.26100.6899 | NVD |
microsoft windows_11_25h2 microsoft:windows_11_25h2 | before 10.0.26200.6899 | NVD |
microsoft windows_server_2012 microsoft:windows_server_2012 | all versions; r2 | NVD |
microsoft windows_server_2016 microsoft:windows_server_2016 | before 10.0.14393.8519 | NVD |
microsoft windows_server_2019 microsoft:windows_server_2019 | before 10.0.17763.7919 | NVD |
microsoft windows_server_2022 microsoft:windows_server_2022 | before 10.0.20348.4294 | NVD |
microsoft windows_server_2022_23h2 microsoft:windows_server_2022_23h2 | before 10.0.25398.1913 | NVD |
microsoft windows_server_2025 microsoft:windows_server_2025 | before 10.0.26100.6899 | NVD |
References
- https://github.com/Zedeldi/igelfsproduct
- https://github.com/Zedeldi/CVE-2025-47827exploit, third-party-advisory
- https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-47827third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-47827us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.