CVE-2025-70293

An issue was discovered in Denx U-Boot before 2026.04. An integer overflow vulnerability exists in function ext4fs_get_bgdtable, the size calculation can lead to under allocation and this underallocated buffer will be used in memcpy() which could lead to arbitrary code execution, a denial of service, or other unspecified impacts.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
http://denx.com
http://u-boot.com
https://gist.github.com/c0zy1/4d9648d10a5ff07bda2771ea1298e469

Configurations

No configuration.

History

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Se descubrió un problema en Denx U-Boot en versiones anteriores a la 2026.04. Existe una vulnerabilidad de desbordamiento de entero en la función ext4fs_get_bgdtable; el cálculo del tamaño puede provocar una asignación insuficiente y este buffer subasignado se utilizará en memcpy(), lo que podría conducir a ejecución de código arbitrario, una denegación de servicio u otros impactos no especificados.

Information

Published : 2026-08-26 20:16

Updated : 2026-10-26 21:10

NVD link : CVE-2025-70293

Mitre link : CVE-2025-70293

CVE.ORG link : CVE-2025-70293

JSON object : View

Products Affected

No product.

CWE

CWE-122

Heap-based Buffer Overflow

CWE-190

Integer Overflow or Wraparound

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