CVE-2025-47827 (GCVE-0-2025-47827)

Vulnerability from cvelistv5 – Published: 2025-06-05 00:00 – Updated: 2026-02-26 17:51
VLAI CISA Previdian
Summary
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.
Severity
4.6 (Medium)
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: active Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-15 03:56 UTC
CWE
  • n/a
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: b0e3fe77-0847-4a68-8d49-3f6645d77fca

Vulnerability ID: CVE-2025-47827

Status: Confirmed

Status Updated: 2025-10-14 02:00 CEST

Exploited: Yes

Timestamps
First Seen: 2025-10-14
Asserted: 2025-10-14
Scope
Notes: IGEL OS Use of a Key Past its Expiration Date Vulnerability | Affected: IGEL / IGEL OS | Description: 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. | 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. | Due date: 2025-11-04 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-47827 ; https://nvd.nist.gov/vuln/detail/CVE-2025-47827
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-324
Feed CISA Known Exploited Vulnerabilities Catalog
Product IGEL OS
Due Date 2025-11-04
Date Added 2025-10-14
Vendorproject IGEL
Vulnerabilityname IGEL OS Use of a Key Past its Expiration Date Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-10-02 08:09 CEST | Updated: 2026-10-02 08:09 CEST
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: d49b65ea-82b3-46f5-bfa7-7f359b11575d

Vulnerability ID: CVE-2025-47827

Status: Confirmed

Status Updated: 2026-06-01 12:42 CEST

Exploited: Yes

Timestamps
First Seen: 2026-06-01
Asserted: 2026-06-01
Scope
Notes: In IGEL OS before 11, Secure Boot can be bypassed because the igel-flash-driver module improperly verifies a cryptographic signature. Ultimately, a... | Affected: IGEL / IGEL OS | CVSS: 4.6 (MEDIUM) | EPSS: 0.04927 | Used in malware: unknown | Listed 1 day ahead of CISA KEV | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details
Feed Previdian (previdian.com)
Title In IGEL OS before 11, Secure Boot can be bypassed because the igel-flash-driver module improperly verifies a cryptographic signature. Ultimately, a...
Cve Id CVE-2025-47827
Vendor IGEL
Ghsa Id None
Product IGEL OS
Added Date 2026-06-01T10:42:10.399Z
Cvss Score 4.6
Epss Score 0.04927
Previous Ids
Cvss Severity MEDIUM
Virtual Patch False
Cvss Estimated False
Epss Percentile 0.91859
Used In Malware unknown
Vulnerability Id CVE-2025-47827
Ahead Of Cisa Kev 
{
  "count": 1,
  "unit": "day"
}
Not Yet In Cisa Kev False
References
Created: 2026-10-02 09:10 CEST | Updated: 2026-10-02 09:10 CEST
Show details on NVD website
To clipboard 

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            {
              "url": "https://github.com/Zedeldi/CVE-2025-47827"
            }
          ]
        }
      },
      "cveMetadata": {
        "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "assignerShortName": "mitre",
        "cveId": "CVE-2025-47827",
        "datePublished": "2025-06-05T00:00:00.000Z",
        "dateReserved": "2025-05-11T00:00:00.000Z",
        "dateUpdated": "2025-10-21T22:55:13.118Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.