What is the CVSS score of CVE-2025-47827?

CVE-2025-47827 has a CVSS 3.1 base score of 4.6 (Medium). CVSS vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 1.8%.

Is there a public PoC exploit available for CVE-2025-47827?

Yes, a public proof-of-concept exploit is available for CVE-2025-47827. Prioritise patching immediately. EPSS: 1.8%.

How to fix or mitigate CVE-2025-47827?

Within 30 days: Identify affected systems running IGEL OS and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Igel Os CVE-2025-47827

EUVD-2025-16999 MEDIUM

Improper Verification of Cryptographic Signature (CWE-347)

2025-06-05 cve@mitre.org

Authentication Bypass Microsoft Igel Os Windows 10 1507 Windows 10 1607 Windows 10 1809 Windows 10 21h2 Windows 10 22h2 Windows 11 22h2 Windows 11 23h2 Windows 11 24h2 Windows 11 25h2 Windows Server 2012 Windows Server 2016 Windows Server 2019 Windows Server 2022 Windows Server 2022 23h2 Windows Server 2025 Igel

4.6

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-347 OWASP Top 10:2025 A04:2025 - Cryptographic Failures ASVS 5.0 V11 - Cryptography Signature verification
Impact	CVSS score of 4.6 (MEDIUM).

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

Exploited in the wild (CISA KEV) No patch listed yet 1.8% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 14, 2026

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.

Earlier versions of this analysis (1)

v1 Mar 14, 2026 - 17:53 CVSS 4.6

RemediationAI

Monitor vendor advisories for patches. Apply mitigations such as network segmentation, access restrictions, and monitoring.

Affected VersionsENISA

n/a n/a

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Improper Verification of Cryptographic Signature (CWE-347).

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 4.6 MEDIUM

AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Added to CISA KEV

Nov 05, 2025 - 19:26 cisa

CISA KEV

PoC Detected

Nov 05, 2025 - 19:26 vuln.today

Public exploit code

CVE Published

Jun 05, 2025 - 14:15 nvd

MEDIUM 4.6

Executive ViewAI

Why It Matters

Organizations using IGEL OS should be aware of moderate risk from CVE-2025-47827, a signature bypass vulnerability rated CVSS 4.6. Exploitation could compromise the security of affected deployments. This vulnerability is actively exploited in the wild (KEV-listed). Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: High

Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.

Threat Intelligence Overview

Threat Score

4.0/10

Composite threat intelligence

EPSS Score

1.8%

Top 17% exploitable

Exploit

POC

Public exploit code exists

Data Quality

6 sources

Confidence: High

EUVD

NVD

CVE.org

CISA KEV

EPSS

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV Yes

Public POC Yes

EPSS 1.8%

Patch available No

Active threat Yes

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.