CVE-2025-70293: n/a
Description
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 v3.1
Score 9.8critical
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Denx U-Boot's ext4fs_get_bgdtable function involves an integer overflow that results in underallocating a buffer. The underallocated buffer is subsequently used in a memcpy call, which can cause memory corruption. Exploitation could allow an attacker to execute arbitrary code, cause a denial of service, or trigger other unspecified effects. The CVSS v3.1 base score is 9.8, indicating critical severity with network attack vector, no privileges required, and no user interaction needed.
Potential Impact
Successful exploitation can lead to arbitrary code execution, denial of service, or other unspecified impacts due to memory corruption from buffer underallocation and misuse in memcpy. The vulnerability affects confidentiality, integrity, and availability as indicated by the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been documented at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-01-09T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 6a8f408eacd9273b494e8054
Added to database: 08/26/2026, 19:37:50 UTC
Last enriched: 09/07/2026, 14:25:45 UTC
Last updated: 10/09/2026, 18:48:16 UTC
Views: 45
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