CVE Alert: CVE-2025-47827 – n/a – n/a
CVE-2025-47827
UnknownExploitation active
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 v3.1 not provided
Vendor
n/a
Product
n/a
Versions
n/a
CWE
n/a
Vector
n a
Published
2025-06-05T00:00:00.000Z
Updated
2025-10-14T17:34:12.647Z
AI Summary Analysis
Risk verdict
Why this matters
Most likely attack path
Who is most exposed
Detection ideas
- Logs showing signature verification bypass or failures in igel-flash-driver during mount attempts.
- Unusual mounting of external SquashFS images or unexpected root filesystem changes.
- Kernel/module load events inconsistent with signed/verified components.
- Sudden changes to boot or Secure Boot state, or repeated reboots after mounting external images.
- Anomalies in file integrity monitoring for critical system paths.
Mitigation and prioritisation
- Apply vendor patch that corrects the signature verification in igel-flash-driver; upgrade to the supported IGEL OS release.
- Enforce Strict Secure Boot configuration and ensure only signed modules/images are allowed; disable auto-mount of unverified media.
- Strengthen physical security controls; use tamper-evident seals and access restriction to endpoints.
- Implement device lockdown and media-boot restrictions; enable monitoring of kernel/module activity.
- Coordinate fast-track remediation and test in a controlled pilot before fleet rollout. The exploitation signal suggests prioritising remediation as a high-priority effort.
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