U-Boot up to 2026.10-rc2 Partition read_slotted_partition out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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4.5$0-$5k0.17

Summaryinfo

A vulnerability identified as problematic has been detected in U-Boot up to 2026.10-rc2. This impacts the function read_slotted_partition of the component Partition. This manipulation causes out-of-bounds write. This vulnerability is registered as CVE-2026-71974. The attack needs to be launched locally. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in U-Boot up to 2026.10-rc2. Affected by this vulnerability is the function read_slotted_partition of the component Partition. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-71974 since 08/08/2026. The exploitation appears to be easy. An attack has to be approached locally. Technical details are known, but no exploit is available.

Upgrading to version 2026.10-rc3 eliminates this vulnerability. Applying the patch 35432ef6fe2c79ab72709966e64815a45eb55c76 is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.5

VulDB Base Score: 4.4
VulDB Temp Score: 4.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.8
CNA Vector (VulnCheck): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Yes
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: U-Boot 2026.10-rc3
Patch: 35432ef6fe2c79ab72709966e64815a45eb55c76

Timelineinfo

08/08/2026 CVE reserved
09/29/2026 +52 days Advisory disclosed
09/29/2026 +0 days VulDB entry created
09/29/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-71974 (🔒)
GCVE (CVE): GCVE-0-2026-71974
GCVE (VulDB): GCVE-100-411805

Entryinfo

Created: 09/29/2026 23:46
Changes: 09/29/2026 23:46 (77)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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