VDB-311255 · CVE-2025-47827 · EUVD-2025-16999

IGEL OS up to 10 igel-flash-driver signature verification

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4.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in IGEL OS up to 10. It has been rated as problematic. Affected is an unknown function of the component igel-flash-driver Module. The manipulation leads to signature verification. This vulnerability is referenced as CVE-2025-47827. The attack can only be performed from a local environment. Furthermore, an exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in IGEL OS up to 10. It has been rated as problematic. This issue affects an unknown function of the component igel-flash-driver Module. The manipulation with an unknown input leads to a signature verification vulnerability. Using CWE to declare the problem leads to CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The identification of this vulnerability is CVE-2025-47827 since 05/11/2025. The exploitation is known to be difficult. Attacking locally is a requirement. Technical details are unknown but an exploit is available.

It is declared as attacked. The vulnerability scanner Nessus provides a plugin with the ID 270390 (KB5066782: Windows Server 2022 / Azure Stack HCI 22H2 Security Update (October 2025)), which helps to determine the existence of the flaw in a target environment. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 10/14/2025 with a due date of 11/04/2025:

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Upgrading to version 11 eliminates this vulnerability.

The vulnerability is also documented in the databases at Zero-Day.cz (1042), Tenable (270390), EUVD (EUVD-2025-16999) and CERT Bund (WID-SEC-2025-2307). Be aware that VulDB is the high quality source for vulnerability data.

Affected

Microsoft Windows 11
Microsoft Windows Server
Microsoft Windows Server 2016
Microsoft Windows 10
Microsoft Windows Server 2019
Microsoft Windows
Microsoft Windows Server 2022
Microsoft Windows Server 2012
Microsoft Windows Server 2012 R2
Microsoft Windows Server 2025

Productinfo

Name

IGEL OS

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.5
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Signature verification
CWE: CWE-347 / CWE-345
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 270390
Nessus Name: KB5066782: Windows Server 2022 / Azure Stack HCI 22H2 Security Update (October 2025)

Zero-Day.cz: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: IGEL OS 11

Timelineinfo

05/11/2025 🔍
06/05/2025 +25 days 🔍
06/05/2025 +0 days 🔍
10/28/2025 +145 days 🔍

Sourcesinfo

Status: Confirmed

CVE: CVE-2025-47827 (🔍)
GCVE (CVE): GCVE-0-2025-47827
GCVE (VulDB): GCVE-100-311255
EUVD: 🔍
CERT Bund: WID-SEC-2025-2307 - Microsoft Windows: Mehrere Schwachstellen

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/05/2025 16:59
Updated: 10/28/2025 02:55
Changes: 06/05/2025 16:59 (52), 06/05/2025 20:17 (1), 06/11/2025 03:28 (1), 10/14/2025 23:00 (13), 10/15/2025 18:02 (2), 10/15/2025 20:58 (2), 10/16/2025 09:33 (7), 10/27/2025 08:57 (1), 10/28/2025 02:55 (2)
Complete: 🔍
Cache ID: 216::103