CVE-2025-70290: n/a
Description
CVE-2025-70290 is a critical integer overflow vulnerability in the ZFS filesystem support of Denx U-Boot before version 2026.04. It can be triggered by malformed on-disk metadata, causing incorrect memory allocation and potentially leading to out-of-bounds memory access. This may result in a crash or arbitrary code execution during the boot process.
CVSS v3.1
Score 9.8critical
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an integer overflow in the ZFS filesystem support within Denx U-Boot versions prior to 2026.04. Malformed on-disk metadata can trigger the overflow, leading to incorrect memory allocation and subsequent out-of-bounds memory access. The flaw can cause the bootloader to crash or allow an attacker to execute arbitrary code during system boot, posing a critical security risk.
Potential Impact
Successful exploitation can lead to denial of service via a crash or potentially allow arbitrary code execution during the boot process, compromising system integrity and availability. The CVSS score of 9.8 reflects the high impact on confidentiality, integrity, and availability with no required privileges or user interaction.
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: 6a8f408eacd9273b494e8052
Added to database: 08/26/2026, 19:37:50 UTC
Last enriched: 09/09/2026, 16:07:55 UTC
Last updated: 10/10/2026, 06:48:14 UTC
Views: 40
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