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Known Exploited Vulnerability
8.4
HIGH CVSS 3.1
CVE-2025-47827
IGEL OS Use of a Key Past its Expiration Date Vulnerability - [Actively Exploited]
Description

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.

INFO

Published Date :

June 5, 2025, 2:15 p.m.

Last Modified :

Nov. 5, 2025, 7:26 p.m.

Remotely Exploit :

No

Source :

[email protected]
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

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.

Notes :

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-47827 ; https://nvd.nist.gov/vuln/detail/CVE-2025-47827

Affected Products

The following products are affected by CVE-2025-47827 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Microsoft windows_server_2012
2 Microsoft windows_server_2016
3 Microsoft windows_server_2019
4 Microsoft windows_10_1607
5 Microsoft windows_10_1809
6 Microsoft windows_10_21h2
7 Microsoft windows_10_22h2
8 Microsoft windows_server_2022
9 Microsoft windows_11_22h2
10 Microsoft windows_10_1507
11 Microsoft windows_11_23h2
12 Microsoft windows_server_2022_23h2
13 Microsoft windows_11_24h2
14 Microsoft windows_server_2025
15 Microsoft windows_11_25h2
1 Igel igel_os
: Total Affected Vendor : 2 | Products : 16
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 MEDIUM 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
Update IGEL OS to version 11 or later to resolve Secure Boot bypass.
  • Update IGEL OS to version 11 or later.
  • Ensure proper verification of cryptographic signatures.
  • Mount only verified SquashFS images.
Public PoC/Exploit Available at Github

CVE-2025-47827 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-47827.

URL Resource
https://github.com/Zedeldi/CVE-2025-47827 Exploit Third Party Advisory
https://github.com/Zedeldi/igelfs Product
https://github.com/Zedeldi/CVE-2025-47827 Exploit Third Party Advisory
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
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-47827 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-47827 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
Zedeldi/CVE-2025-47827

PoC and vulnerability report for CVE-2025-47827.

cve igel secure-boot cve-2025-47827 isn-2025-22 vulnerability kexec igel-flash-driver cwe-347 cwe-324

Shell

Updated: 22 hours, 45 minutes ago
2 stars 2 fork 2 watcher
Born at : May 20, 2025, 10:42 a.m. This repo has been linked 2 different CVEs too.
Profile Photo
nomi-sec/PoC-in-GitHub

📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.

security cve exploit poc vulnerability

Updated: 1 day, 13 hours ago
7392 stars 1218 fork 1218 watcher
Born at : Dec. 8, 2019, 1:03 p.m. This repo has been linked 825 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-47827 vulnerability anywhere in the article.

  • Help Net Security
November 2025 Patch Tuesday forecast: Windows Exchange Server EOL?

October 2025 Patch Tuesday was one for the record books in so many ways. There was a big push by Microsoft to fix as many open vulnerabilities as possible in products that were reaching end-of-life (E ... Read more

Published Date: Nov 07, 2025 (2 weeks, 4 days ago)
  • CrowdStrike.com
October 2025 Patch Tuesday: Two Publicly Disclosed, Three Zero-Days, and Eight Critical Vulnerabilities Among 172 CVEs

Microsoft has addressed 172 vulnerabilities in its October 2025 security update release, marking the highest number of vulnerabilities patched in a single month this year. This month's patches address ... Read more

Published Date: Oct 28, 2025 (4 weeks ago)
  • Help Net Security
Microsoft releases urgent fix for actively exploited WSUS vulnerability (CVE-2025-59287)

Microsoft has released an out-of-band security update that “comprehensively” addresses CVE-2025-59287, a remote code execution vulnerability in the Windows Server Update Services (WSUS) that is report ... Read more

Published Date: Oct 24, 2025 (1 month ago)
  • Help Net Security
Microsoft blocks risky file previews in Windows File Explorer

Along with fixing many code-based vulnerabilities, the October 2025 Windows updates also change how File Explorer handles files downloaded from the internet. The change affects the file management too ... Read more

Published Date: Oct 24, 2025 (1 month ago)
  • Help Net Security
Week in review: F5 data breach, Microsoft patches three actively exploited zero-days

Here’s an overview of some of last week’s most interesting news, articles, interviews and videos: Building a healthcare cybersecurity strategy that works In this Help Net Security interview, Wayman Cu ... Read more

Published Date: Oct 19, 2025 (1 month ago)
  • Help Net Security
“Perfect” Adobe Experience Manager vulnerability is being exploited (CVE-2025-54253)

CISA has added CVE-2025-54253, a misconfiguration vulnerability in Adobe Experience Manager (AEM) Forms on Java Enterprise Edition (JEE), to its Known Exploited Vulnerabilities catalog, thus warning o ... Read more

Published Date: Oct 16, 2025 (1 month, 1 week ago)
  • Hackread - Latest Cybersecurity, Hacking News, Tech, AI & Crypto
Microsoft Patch Tuesday Oct 2025 Fixs 175 Vulnerabilities including 3 Zero-Days

Microsoft Patch Tuesday for October 2025 was massive, delivering over 170 security fixes, making immediate patching mandatory due to the volume and critical nature of the vulnerabilities across Window ... Read more

Published Date: Oct 15, 2025 (1 month, 1 week ago)
  • Help Net Security
Microsoft patches three zero-days actively exploited by attackers

On October 2025 Patch Tuesday, Microsoft released fixes for 175+ vulnerabilities, including three zero-days under active attack: CVE-2025-24990, CVE-2025-59230, and CVE-2025-47827. The actively exploi ... Read more

Published Date: Oct 15, 2025 (1 month, 1 week ago)
  • The Hacker News
Two New Windows Zero-Days Exploited in the Wild — One Affects Every Version Ever Shipped

Microsoft on Tuesday released fixes for a whopping 183 security flaws spanning its products, including three vulnerabilities that have come under active exploitation in the wild, as the tech giant off ... Read more

Published Date: Oct 15, 2025 (1 month, 1 week ago)
  • security.nl
Microsoft verhelpt drie actief aangevallen kwetsbaarheden in Windows

Tijdens de patchdinsdag van oktober, en laatste reguliere patchronde van Windows 10, heeft Microsoft 177 nieuwe kwetsbaarheden verholpen, waaronder drie actief aangevallen beveiligingslekken. Via twee ... Read more

Published Date: Oct 15, 2025 (1 month, 1 week ago)
  • The Register
Frightful Patch Tuesday gives admins a scare with 175+ Microsoft CVEs, 3 under attack

Spooky season is in full swing, and this extends to Microsoft's October Patch Tuesday with security updates for a frightful 175 Microsoft vulnerabilities, plus an additional 21 non-Microsoft CVEs. And ... Read more

Published Date: Oct 14, 2025 (1 month, 1 week ago)
  • The Cyber Express
Patch Tuesday October 2025: Three Zero-days Under Attack

Microsoft’s Patch Tuesday October 2025 included fixes for 175 vulnerabilities, including three exploited zero-days and 13 additional high-risk vulnerabilities. The three zero-days under attack were qu ... Read more

Published Date: Oct 14, 2025 (1 month, 1 week ago)
  • Daily CyberSecurity
IGEL OS 10 Flaw (CVE-2025-47827): Full Secure Boot Bypass Allows Untrusted Kernel & Rootkits, PoC Available

Researcher Zack Didcott has disclosed a critical vulnerability affecting IGEL OS 10. Tracked as CVE-2025-47827, the flaw enables a full Secure Boot bypass, allowing attackers to load arbitrary, unsign ... Read more

Published Date: Jun 12, 2025 (5 months, 1 week ago)
  • Ars Technica
Found in the wild: 2 Secure Boot exploits. Microsoft is patching only 1 of them.

A skeleton key for hackers The publicly available exploits provide a near-universal way to bypass key protections. Researchers have unearthed two publicly available exploits that completely evade prot ... Read more

Published Date: Jun 10, 2025 (5 months, 2 weeks ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-47827 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Modified Analysis by [email protected]

    Nov. 05, 2025

    Action Type Old Value New Value
    Added Reference Type CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-47827 Types: US Government Resource
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Oct. 21, 2025

    Action Type Old Value New Value
    Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-47827
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Oct. 21, 2025

    Action Type Old Value New Value
    Removed Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-47827
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Oct. 21, 2025

    Action Type Old Value New Value
    Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-47827
  • Initial Analysis by [email protected]

    Oct. 15, 2025

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:o:igel:igel_os:*:*:*:*:*:*:*:* versions up to (excluding) 11.01.100
    Added CPE Configuration OR *cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:* versions up to (excluding) 10.0.10240.21161 *cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:* versions up to (excluding) 10.0.14393.8519 *cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* versions up to (excluding) 10.0.17763.7919 *cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.17763.7919 *cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.25398.1913 *cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.20348.4294 *cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.14393.8519 *cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.26200.6899 *cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.26100.6899 *cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.22631.6060 *cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.22621.6060 *cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:* versions up to (excluding) 10.0.10240.21161 *cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:* versions up to (excluding) 10.0.14393.8519 *cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:* versions up to (excluding) 10.0.17763.7919 *cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.19044.6456 *cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.19045.6456 *cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.26100.6899
    Added Reference Type MITRE: https://github.com/Zedeldi/CVE-2025-47827 Types: Exploit, Third Party Advisory
    Added Reference Type MITRE: https://github.com/Zedeldi/igelfs Types: Product
    Added Reference Type CISA-ADP: https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-47827 Types: Third Party Advisory
    Added Reference Type CISA-ADP: https://github.com/Zedeldi/CVE-2025-47827 Types: Exploit, Third Party Advisory
  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Oct. 15, 2025

    Action Type Old Value New Value
    Added Date Added 2025-10-14
    Added Due Date 2025-11-04
    Added 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.
    Added Vulnerability Name IGEL OS Use of a Key Past its Expiration Date Vulnerability
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Oct. 14, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Removed CVSS V3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added Reference https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-47827
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jun. 10, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-347
    Added Reference https://github.com/Zedeldi/CVE-2025-47827
  • New CVE Received by [email protected]

    Jun. 05, 2025

    Action Type Old Value New Value
    Added Description 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.
    Added Reference https://github.com/Zedeldi/CVE-2025-47827
    Added Reference https://github.com/Zedeldi/igelfs
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 8.4
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact