CVE-2026-20466

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 47/100
Published: 2026-08-03 Modified: 2026-10-23 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Physical
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: High
A: None

Description

In sec boot, there is a possible escalation of privilege due to a heap buffer overflow. This could lead to local escalation of privilege, if an attacker has physical access to the device, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: AUTO00845351 (Note: For MT2737) / ALPS11072643 (Note: For MT6880, MT6890, MT6990); Issue ID: MSV-6929.

Weakness Classification (1)

Bug Bounty Relevance

47 / 100
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.1 / 10.0 v3.1
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS — Exploitation Probability

0.17%
Raw Score 0.001660
Percentile 5.8%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00166
2026-10-28
0.00166

Intelligence Sources

nvd ref →