CVEvulnerability

CVE-2025-47827

4.6 MEDIUM Known exploited Published 2025-06-05 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

IGEL OS Use of a Key Past its Expiration Date Vulnerability — IGEL IGEL OS

IGEL OS contains a use of a key past its expiration date vulnerability that allows for Secure Boot bypass. The igel-flash-driver module improperly verifies a cryptographic signature. Ultimately, a crafted root filesystem can be mounted from an unverified SquashFS image.

Added to KEV
2025-10-14
Remediation due
2025-11-04
Ransomware use
Unknown
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.
Notes
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-47827 ; https://nvd.nist.gov/vuln/detail/CVE-2025-47827
Status
Analyzed
Published
2025-06-05
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
4.6 MEDIUM — CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-347

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.

Affected configurations

• igel igel os (< 11.01.100) • microsoft windows 10 1507 (< 10.0.10240.21161) • microsoft windows 10 1607 (< 10.0.14393.8519) • microsoft windows 10 1809 (< 10.0.17763.7919) • microsoft windows 10 21h2 (< 10.0.19044.6456) • microsoft windows 10 22h2 (< 10.0.19045.6456) • microsoft windows 11 22h2 (< 10.0.22621.6060) • microsoft windows 11 23h2 (< 10.0.22631.6060) • microsoft windows 11 24h2 (< 10.0.26100.6899) • microsoft windows 11 25h2 (< 10.0.26200.6899) • microsoft windows server 2012 • microsoft windows server 2012 r2 • microsoft windows server 2016 (< 10.0.14393.8519) • microsoft windows server 2019 (< 10.0.17763.7919) • microsoft windows server 2022 (< 10.0.20348.4294) • microsoft windows server 2022 23h2 (< 10.0.25398.1913) • microsoft windows server 2025 (< 10.0.26100.6899)

Related

Weakness · CWE (1)

  • CWE-347 Improper Verification of Cryptographic Signature weakness

References