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.

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.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Unisoc (Shanghai) Technologies Co., Ltd. Bootloader unaffected
Version Status Constraints
SC9863A affected —
SC9832E affected —
SC7731E affected —
T310 affected —
T610 affected —
T618 affected —
T7200 affected —
T7225 affected —
T7250 affected —
T7255 affected —
T7280 affected —
T8100 affected —
T9100 affected —
T8200 affected —
T7300 affected —
T8300 affected —

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Unisoc

Published:

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.

cve-icon OpenCVE Enrichment

No data.

Weaknesses