CVE-2025-47827

Exp

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.

Published: 2025-06-05 Last update: 2025-11-05 Assigner: [email protected] Source: [email protected]

NVD Status：Analyzed，CVE State: published

View at NVD, CVE.org, EUVD

Threat Intelligence & Risk Assessment for CVE-2025-47827

KEV EPSS CVSS CWE Exploit-DB Affected

Conclusion & alert: CVE-2025-47827 is rated Active Exploitation (76.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.53%). Core evidence: CISA KEV confirms active exploitation (added 2025-10-14) affecting IGEL / IGEL OS. a weakness (CWE-347) Unauthenticated remote administrative access may be possible. EPSS rose +2.61% over the last day, indicating growing attacker interest. Mandatory action: The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2025-47827

Name: IGEL OS Use of a Key Past its Expiration Date Vulnerability · CISA KEV detail

Exploit added: 2025-10-14

Action due: 2025-11-04

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.

Public exploit references (Exploit-DB) for CVE-2025-47827

EDB-ID	Source	Kind	Published	Link
—	nvd_ref	exploit_tag		Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2025-47827

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.92%	3.53%	+2.61%
2	2026-06-05	1.00%	0.92%	-0.08%
3	2026-06-01	—	1.00%	—

Full EPSS history (35 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-47827

CVSS metrics for this CVE.

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
4.6	3.1	MEDIUM	`CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H` Click to expand Attack vector (AV:P) Hands-on access—USB, keyboard, opening the case—not something you do purely over the wire. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	0.9	3.6	134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-47827

CWE-347 MITRE ↗

Affected software / configurations for CVE-2025-47827

Vendor	Product	Version	Raw CPE
igel	igel_os	< 11.01.100	cpe:2.3:o:igel:igel_os::::::::
microsoft	windows_10_1507	< 10.0.10240.21161	cpe:2.3:o:microsoft:windows_10_1507:::::::x64:*
microsoft	windows_10_1507	< 10.0.10240.21161	cpe:2.3:o:microsoft:windows_10_1507:::::::x86:*
microsoft	windows_10_1607	< 10.0.14393.8519	cpe:2.3:o:microsoft:windows_10_1607:::::::x64:*
microsoft	windows_10_1607	< 10.0.14393.8519	cpe:2.3:o:microsoft:windows_10_1607:::::::x86:*
microsoft	windows_10_1809	< 10.0.17763.7919	cpe:2.3:o:microsoft:windows_10_1809:::::::x64:*
microsoft	windows_10_1809	< 10.0.17763.7919	cpe:2.3:o:microsoft:windows_10_1809:::::::x86:*
microsoft	windows_10_21h2	< 10.0.19044.6456	cpe:2.3:o:microsoft:windows_10_21h2::::::::
microsoft	windows_10_22h2	< 10.0.19045.6456	cpe:2.3:o:microsoft:windows_10_22h2::::::::
microsoft	windows_11_22h2	< 10.0.22621.6060	cpe:2.3:o:microsoft:windows_11_22h2::::::::
microsoft	windows_11_23h2	< 10.0.22631.6060	cpe:2.3:o:microsoft:windows_11_23h2::::::::
microsoft	windows_11_24h2	< 10.0.26100.6899	cpe:2.3:o:microsoft:windows_11_24h2::::::::
microsoft	windows_11_25h2	< 10.0.26200.6899	cpe:2.3:o:microsoft:windows_11_25h2::::::::
microsoft	windows_server_2012	—	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
microsoft	windows_server_2012	r2	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*
microsoft	windows_server_2016	< 10.0.14393.8519	cpe:2.3:o:microsoft:windows_server_2016::::::::
microsoft	windows_server_2019	< 10.0.17763.7919	cpe:2.3:o:microsoft:windows_server_2019::::::::
microsoft	windows_server_2022	< 10.0.20348.4294	cpe:2.3:o:microsoft:windows_server_2022::::::::
microsoft	windows_server_2022_23h2	< 10.0.25398.1913	cpe:2.3:o:microsoft:windows_server_2022_23h2::::::::
microsoft	windows_server_2025	< 10.0.26100.6899	cpe:2.3:o:microsoft:windows_server_2025::::::::

References for CVE-2025-47827

URL	Tags
https://github.com/Zedeldi/CVE-2025-47827	Exploit Third Party Advisory
https://github.com/Zedeldi/igelfs	Product
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-47827	Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-47827	US Government Resource

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