Medium severity6.5NVD Advisory· Published Feb 2, 2026· Updated Jun 17, 2026

CVE-2026-20419

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

MediaTek, Inc./MediaTek chipsetv5
Range: MT6890
Mediatek/wlan AP/STA firmwarellm-create
Mediatek/Nbiot SDK
cpe:2.3:a:mediatek:nbiot_sdk:*:*:*:*:*:*:*:*
Range: <=3.6
Mediatek/Software Development Kit
cpe:2.3:a:mediatek:software_development_kit:*:*:*:*:*:*:*:*
Range: <=7.6.7.2
Openwrt/Openwrt2 versions
cpe:2.3:o:openwrt:openwrt:19.07.0:-:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:openwrt:openwrt:19.07.0:-:*:*:*:*:*:*
- cpe:2.3:o:openwrt:openwrt:21.02.0:-:*:*:*:*:*:*

cvss	0.423
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

CVE-2026-20419

Description

AI Insight

Affected products

Patches

Vulnerability mechanics

References

News mentions