CVE-2026-80335
Out-of-bounds Write in Bootloader
Memory Corruption when processing firmware update data in Download mode due to a missing bounds check.
Attack profile
How easy it is to exploit
- Attack vector
- Physical
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Out-of-bounds Write in Bootloader
Memory Corruption when processing firmware update data in Download mode due to a missing bounds check.
- Record
CVE-2026-80335- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-05
EUVDEUVD-2026-116698
Memory Corruption when processing firmware update data in Download mode due to a missing bounds check.
- Record
EUVD-2026-116698- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-05
GitHub AdvisoriesGHSA-m96g-cvqq-8rj6
In the bootloader download module, there is a possible out-of-bounds write due to a failure to...
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.
- Record
GHSA-m96g-cvqq-8rj6- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-04
NVD
Memory Corruption when processing firmware update data in Download mode due to a missing bounds check.
- Record
CVE-2026-80335- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-05
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
:unknown:Android |
SoCVersion:0 up to SoCVersion:2026-11-05, plus listed versions SoCVersion |
SoCVersion:2026-11-05 |
History
| Recorded | Changed | Sources |
|---|---|---|
| description | CVE List, EUVD | |
| description | CVE List, EUVD, NVD | |
| aliases, references | GitHub Advisories, NVD | |
| references | EUVD | |
| aliases, references | EUVD | |
| cwes, description, facts, products, references, severity, title | CVE List | |
| first indexed | OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-80335 is a high vulnerability (CVSS 8.4) in Unisoc (shanghai) Technologies Co., Ltd. Bootloader, published November 1, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.24%, the 15th percentile. Fixed in :unknown: SoCVersion:2026-11-05.