CVE-2026-71974U-Boot before 2026.10-rc3 Out-of-Bounds Write via Android Bootmeth Partition Read
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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U-Boot before 2026.10-rc3 contains an out-of-bounds write vulnerability in read_slotted_partition() that fails to validate image size against partition bounds. Attackers with physical access can supply crafted boot media with oversized headers to write past the load buffer into bootloader memory on devices without Android Verified Boot protection.
- CVSS
- 4.8 MEDIUM (v3.1, CNA)CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
- Weakness (CWE)
- CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 30, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
u-boot u-boot u_boot:u_boot (from the name) | before 2026.10-rc3 | CNA record |
References
- https://github.com/u-boot/u-boot/commit/35432ef6fe2c79ab72709966e64815a45eb55c76patch
- https://github.com/u-boot/u-boot/blob/v2026.07/boot/bootmeth_android.c#L356technical-description
- https://patch.msgid.link/20260729-b4-android-bootmeth-oob-v1-1-31c3450ae0be@byteray.co.ukmailing-list
- https://github.com/u-boot/u-bootproduct
- https://www.vulncheck.com/advisories/u-boot-before-2026.10-rc3-out-of-bounds-write-via-android-bootmeth-partition-readthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.