In the bootloader download module, there is a possible out-of-bounds write due to a failure to reset a global offset variable during firmware update sessions. This could lead to heap memory corruption, system crash, or potential arbitrary code execution with no additional execution privileges needed.

Metrics

No CVSS v4.0

Attack Vector Physical

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

No data.

No data.

No data.

References
Link Providers
https://www.unisoc.com/en/support/product-security-bulletin/2117823464494759937 cve-icon cve-icon
History

Wed, 04 Nov 2026 04:00:00 +0000

Type Values Removed Values Added
References

Wed, 04 Nov 2026 03:30:00 +0000

Type Values Removed Values Added
Description In the bootloader download module, there is a possible out-of-bounds write due to a failure to reset a global offset variable during firmware update sessions. This could lead to heap memory corruption, system crash, or potential arbitrary code execution with no additional execution privileges needed.
Title Out-of-bounds Write in Bootloader
Weaknesses CWE-787
References
Metrics cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'}
cve-icon MITRE

Status: PUBLISHED

Assigner: Unisoc

Published: 2026-11-04T03:20:53.265Z

Updated: 2026-11-04T03:56:24.347Z

Reserved: 2026-08-26T08:48:20.974Z

Link: CVE-2026-80335

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-04T04:17:37.623

Modified: 2026-11-04T04:17:37.623

Link: CVE-2026-80335

cve-icon Redhat

No data.