IGEL OS Use of a Key Past its Expiration Date Vulnerability (CVE-2025-47827)
Severity: medium · Patch status: unknown · Since 2025-10-14 · CVE-2025-47827
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. CISA added CVE-2025-47827 to its Known Exploited Vulnerabilities catalog on Oct 14, 2025, which means attackers are exploiting it in the wild.
What to do
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- US federal agencies must remediate by Nov 4, 2025 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
