TI-2026-84926 Aliases CVE-2026-80335 GHSA-m96g-cvqq-8rj6

Out-of-bounds Write in Unisoc Bootloader

LOW 38CWE-787Published 2026-11-04 · Updated 2026-11-05

Key facts

Attack vector: Physical
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

CVE-2026-80335 (GHSA-m96g-cvqq-8rj6), published 2026-11-04, is an out-of-bounds write (CWE-787) in the Bootloader of Unisoc (Shanghai) Technologies Co., Ltd. Memory corruption occurs when the bootloader processes firmware update data in Download mode because a bounds check is missing. The CVSS 3.1 base score is 8.4 (HIGH), with vector CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H. The flaw affects the SC9863A, SC9832E, SC7731E, T310, T610, T618, T7200, T7225, T7250, T7255, T7280, T8100, T9100, T8200, T7300 and T8300 chipsets, and it is not listed in CISA KEV.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Description from the CNA

Memory Corruption when processing firmware update data in Download mode due to a missing bounds check.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00243 15th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Google	Bootloader	SC9863A; SC9832E; SC7731E; T310; T610; T618; T7200; T7225; T7250; T7255; T7280; T8100; T9100; T8200; T7300; T8300	—	No fix listed	CNA

Bootloader VendorGoogle Affected SC9863A; SC9832E; SC7731E; T310; T610; T618; T7200; T7225; T7250; T7255; T7280; T8100; T9100; T8200; T7300; T8300 Fixed in — No fix listed CNA

Remediation

No fix is listed for the affected Bootloader on these chipsets, so no fixed version can be named. Monitor the CNA's advisory for a patch.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Timeline

2026-11-04 Threatist record created from CVE-2026-80335
2026-11-04 Alias added: GHSA-m96g-cvqq-8rj6
2026-11-04 1 new reference · CNA
2026-11-04 CISA SSVC decision points changed
2026-11-04 Priority changed: MEDIUM → LOW

References

Other 1

https://www.unisoc.com/en/support/product-security-bulletin/2117823464494759937

TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
TI-2024-07390 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
TI-2024-04898 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
TI-2024-04600 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
TI-2024-04346 Use after free in Google Chrome KEVCVSS 3.1CRITICAL 9.6
TI-2023-05824 Integer overflow in Google Chrome KEVCVSS 3.1CRITICAL 9.6

See all 17247 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences