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 :
Oct. 15, 2025, 1 a.m.
Remotely Exploit :
No
Source :
[email protected]
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.
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.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
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.
No affected product recoded yet
CVSS Scores
| 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.
- 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.
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).
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
Shell
📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.
security cve exploit poc vulnerability
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.
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
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.
-
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