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CVE-2025-47827: IGEL OS Use of a Key Past its Expiration Date Vulnerability

criticalknown exploitedpublic exploitCVE-2025-47827
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.

CSIRTS triage

vendor: IGELproduct: IGEL OSOther
What
A use of a key past its expiration date vulnerability allows for Secure Boot bypass.
Who is affected
Users of IGEL OS.
Urgency
Remediation is critical due to active exploitation.
Action
Update IGEL OS to the latest version.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2025-10-14
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-47827

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2025-47827coverage & exploitation statusNVD · CVE.org

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