Out-of-Bounds Write Vulnerability in Unisoc Bootloader Download Module
CVE-2026-80335

8.4HIGH

What is CVE-2026-80335?

The bootloader download module from Unisoc exhibits a vulnerability where a failure to reset a global offset variable during firmware updates may cause out-of-bounds writes. This flaw can potentially lead to heap memory corruption, resulting in system crashes or the execution of arbitrary code without requiring additional execution privileges. Users of affected products should assess their systems for security implications and apply necessary mitigations.

Affected Version(s)

Bootloader SC9863A

Bootloader SC9832E

Bootloader SC7731E

References

CVSS V3.1

Score:
8.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Physical
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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