TianoCore EDK2 up to stable202505 BIOS protection mechanism

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in TianoCore EDK2 up to stable202505. It has been rated as critical. This affects an unknown part of the component BIOS. This manipulation causes protection mechanism. This vulnerability appears as CVE-2025-3770. The attack requires local access. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in TianoCore EDK2 up to stable202505. Affected by this vulnerability is an unknown function of the component BIOS. The manipulation with an unknown input leads to a protection mechanism vulnerability. The CWE definition for the vulnerability is CWE-693. The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

EDK2 contains a vulnerability in BIOS where an attacker may cause “Protection Mechanism Failure” by local access. Successful exploitation of this vulnerability will lead to arbitrary code execution and impact Confidentiality, Integrity, and Availability.

The weakness was presented by Christopher Domas as GHSA-vx5v-4gg6-6qxr. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2025-3770 since 04/17/2025. The exploitation appears to be difficult. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/13/2025).

The vulnerability scanner Nessus provides a plugin with the ID 252296 (Amazon Linux 2 : edk2 (ALAS-2025-2975)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (252296) and CERT Bund (WID-SEC-2025-1741). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Amazon Linux 2
  • Ubuntu Linux
  • Oracle Linux
  • Insyde UEFI Firmware
  • TianoCore EDK2

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.0
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.0
CNA Vector (TianoCore): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Protection mechanism
CWE: CWE-693
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 252296
Nessus Name: Amazon Linux 2 : edk2 (ALAS-2025-2975)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/17/2025 CVE reserved
08/07/2025 +112 days Advisory disclosed
08/07/2025 +0 days VulDB entry created
12/13/2025 +128 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-vx5v-4gg6-6qxr
Researcher: Christopher Domas
Status: Confirmed

CVE: CVE-2025-3770 (🔒)
GCVE (CVE): GCVE-0-2025-3770
GCVE (VulDB): GCVE-100-319123
CERT Bund: WID-SEC-2025-1741 - TianoCore EDK2: Schwachstelle ermöglicht Privilegieneskalation

Entryinfo

Created: 08/07/2025 08:55
Updated: 12/13/2025 18:23
Changes: 08/07/2025 08:55 (63), 08/07/2025 14:15 (1), 08/08/2025 04:36 (7), 08/20/2025 05:50 (2), 09/07/2025 22:54 (1), 12/13/2025 18:23 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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