CVE-2026-20436 is a local escalation of privilege vulnerability in the WLAN STA driver of several MediaTek chipsets, including the mt79xx series and mt8696. The vulnerability stems from a missing bounds check, allowing an attacker with existing System privileges to escalate their access without user interaction. Rated 6.7 MEDIUM, its attack vector is local with low complexity, but successful exploitation grants high confidentiality, integrity, and availability impacts. Currently, there is no known active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 3.8CPE matchmatch criteria | cpe:2.3:a:mediatek:nbiot_sdk:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.