CVE-2025-70293 Affecting u-boot package, versions <2021.01+dfsg-3ubuntu0~20.04.6+esm1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published7 Oct 2026
- disclosed26 Aug 2026
Introduced: 26 Aug 2026
CVE-2025-70293 (opens in a new tab)How to fix?
Upgrade Ubuntu:20.04 u-boot to version 2021.01+dfsg-3ubuntu0~20.04.6+esm1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream u-boot package and not the u-boot package as distributed by Ubuntu.
See How to fix? for Ubuntu:20.04 relevant fixed versions and status.
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.