SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2026-20419

This could lead to remote (proximal/adjacent) denial of service with no additional execution privileges needed.

MEDIUM 6.5EPSS 0.77%

Does this matter?

Lower severity and a low EPSS score (0.77%). Track it; it rarely justifies an emergency change on its own.

Description

In wlan AP/STA firmware, there is a possible system becoming irresponsive due to an uncaught exception. This could lead to remote (proximal/adjacent) denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00461663 / WCNCR00463309; Issue ID: MSV-4852.

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
0.77% probability · 54th percentile
CISA KEV
Not listed
Weakness
CWE-754
Affected
mediatek/nbiot sdk · mediatek/software development kit · openwrt/openwrt
Source
security@mediatek.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.