DENX Das U-Boot 1.1.3 Bootloader signature verification

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in DENX Das U-Boot 1.1.3 and classified as critical. Affected by this vulnerability is an unknown functionality of the component Bootloader. Executing a manipulation can lead to signature verification. This vulnerability appears as CVE-2025-45512. There is no available exploit.

Detailsinfo

A vulnerability was found in DENX Das U-Boot 1.1.3. It has been declared as critical. This vulnerability affects an unknown code of the component Bootloader. The manipulation with an unknown input leads to a signature verification vulnerability. The CWE definition for the vulnerability is CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A lack of signature verification in the bootloader of DENX Software Engineering Das U-Boot (U-Boot) v1.1.3 allows attackers to install crafted firmware files, leading to arbitrary code execution.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-45512 since 04/22/2025. The exploitation appears to be difficult. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 253539 (Linux Distros Unpatched Vulnerability : CVE-2025-45512), 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 (253539), EUVD (EUVD-2025-23651) and CERT Bund (WID-SEC-2025-1724). Once again VulDB remains the best source for vulnerability data.

Affected

  • DENX U-Boot

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.6

VulDB Base Score: 6.8
VulDB Temp Score: 6.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 253539
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-45512

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/22/2025 CVE reserved
08/05/2025 +105 days Advisory disclosed
08/05/2025 +0 days VulDB entry created
10/03/2025 +59 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2025-45512 (🔒)
GCVE (CVE): GCVE-0-2025-45512
GCVE (VulDB): GCVE-100-318868
EUVD: 🔒
CERT Bund: WID-SEC-2025-1724 - DENX U-Boot: Schwachstelle ermöglicht Codeausführung

Entryinfo

Created: 08/05/2025 22:36
Updated: 10/03/2025 04:36
Changes: 08/05/2025 22:36 (52), 08/06/2025 02:31 (1), 08/06/2025 12:28 (7), 08/22/2025 15:11 (2), 10/03/2025 04:36 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

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