Vulnerability record/PUBLISHED/Published Nov 4, 2026 03:20:53 UTC

CVE-2026-80335

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.

Base score8.4/ 10

SeverityHighCVSS 3.1

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes

Base severityHigh

Attack vectorPhysicalAV

Attack complexityLowAC

Privileges requiredNonePR

User interactionNoneUI

ScopeChangedS

Confidentiality impactHighC

Integrity impactHighI

Availability impactHighA

CVSS vector stringCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering AuthorityUnisoc

Last updatedNov 4, 2026 03:56:24 UTC

PublishedNov 4, 2026 03:20:53 UTC

ReservedAug 26, 2026 08:48:20 UTC