CVE-2025-47827
Status: AnalyzedMedium (4.6)⚠ Active exploitation
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
- Version: 3.1
- Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Base score: 4.6
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 4.93%
- Percentile among all scored CVEs: 92
- Score date: 10/1/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
CISA KEV — actively exploited
- Added to catalog: 10/14/2025
- Remediation due date: 11/4/2025
- Known ransomware use: Unknown
Affected technologies (16)
Igel — Igel OSMicrosoft — Windows 10 1507Microsoft — Windows 10 1607Microsoft — Windows 10 1809Microsoft — Windows 10 21h2Microsoft — Windows 10 22h2Microsoft — Windows 11 22h2Microsoft — Windows 11 23h2Microsoft — Windows 11 24h2Microsoft — Windows 11 25h2Microsoft — Windows Server 2012Microsoft — Windows Server 2016Microsoft — Windows Server 2019Microsoft — Windows Server 2022Microsoft — Windows Server 2022 23h2Microsoft — Windows Server 2025
CWEs
- CWE-347
References
Raw JSON (NVD)
Show
{
"id": "CVE-2025-47827",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-47827",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "active"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2025-10-15T03:56:26.403974Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 4.6,
"attackVector": "PHYSICAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 0.9
}
]
},
"affected": [
{
"source": "cve@mitre.org",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2025-06-05T14:15:32.263",
"references": [
{
"url": "https://github.com/Zedeldi/CVE-2025-47827",
"tags": [
"Exploit",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://github.com/Zedeldi/igelfs",
"tags": [
"Product"
],
"source": "cve@mitre.org"
},
{
"url": "https://github.com/Zedeldi/CVE-2025-47827",
"tags": [
"Exploit",
"Third Party Advisory"
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
},
{
"url": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-47827",
"tags": [
"Third Party Advisory"
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
},
{
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-47827",
"tags": [
"US Government Resource"
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"description": [
{
"lang": "en",
"value": "CWE-347"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "En sistemas operativos IGEL anteriores a la versión 11, el arranque seguro se puede omitir porque el módulo igel-flash-driver verifica incorrectamente una firma criptográfica. En última instancia, se puede montar un sistema de archivos root manipulados desde una imagen de SquashFS sin verificar."
}
],
"lastModified": "2026-06-17T09:28:44.910",
"cisaActionDue": "2025-11-04",
"cisaExploitAdd": "2025-10-14",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:igel:igel_os:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8287FE1A-4E34-40E1-9A78-619D46C07433",
"versionEndExcluding": "11.01.100"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "030F3214-D6AF-40A9-9FC9-523AC9870581",
"versionEndExcluding": "10.0.10240.21161"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:*",
"vulnerable": true,
"matchCriteriaId": "4932CB20-D134-4EDF-8F21-F9D0AF80BFEA",
"versionEndExcluding": "10.0.10240.21161"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "D8145D41-BFB2-47A6-B5E5-1A038A27C1C1",
"versionEndExcluding": "10.0.14393.8519"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*",
"vulnerable": true,
"matchCriteriaId": "3EE0CDB1-CBF3-45F2-8F0B-96A9D0757B42",
"versionEndExcluding": "10.0.14393.8519"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "E216CD5B-8885-4E17-8718-97E88A724A44",
"versionEndExcluding": "10.0.17763.7919"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*",
"vulnerable": true,
"matchCriteriaId": "36E44227-0320-43B1-A0D9-EB28B25CDB4D",
"versionEndExcluding": "10.0.17763.7919"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1485A427-10FF-4C39-9911-4C6F1820BE7F",
"versionEndExcluding": "10.0.19044.6456"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "26CAACAA-3FE8-4740-8CF2-6BF3D069C47F",
"versionEndExcluding": "10.0.19045.6456"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6F387FA2-66C8-4B70-A537-65806271F16A",
"versionEndExcluding": "10.0.22621.6060"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A3FEBF91-5010-4C84-B93A-6EFA4838185A",
"versionEndExcluding": "10.0.22631.6060"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "41E9F7AC-8E6D-43A0-A157-48A5E0B5BD0D",
"versionEndExcluding": "10.0.26100.6899"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3B77A066-4F79-4B1F-AECF-58DB4C651EA5",
"versionEndExcluding": "10.0.26200.6899"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A7DF96F8-BA6A-4780-9CA3-F719B3F81074"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DB18C4CE-5917-401E-ACF7-2747084FD36E"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7A8CC16F-8B44-4E7D-8503-25D753387345",
"versionEndExcluding": "10.0.14393.8519"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "20810926-AEC9-4C09-9C52-B4B8FADECF3A",
"versionEndExcluding": "10.0.17763.7919"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B1C1EA69-6BB8-4E59-8659-43581FDB48B7",
"versionEndExcluding": "10.0.20348.4294"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "370C12D6-90EF-44BE-8070-AA0080C12600",
"versionEndExcluding": "10.0.25398.1913"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "72C1771B-635B-41E3-84AF-8822467A1869",
"versionEndExcluding": "10.0.26100.6899"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "cve@mitre.org",
"cisaRequiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
"cisaVulnerabilityName": "IGEL OS Use of a Key Past its Expiration Date Vulnerability"
}