Signal is active with 3 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD 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.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
3 versions affected across 28 products
There is a new vulnerability with elevated criticality in MediaTek MT6890 and other products (CVE-2026-20419) https://vuldb.com/?id.343701
Post summary
A newly identified high‑criticality vulnerability (CVE‑2026‑20419) has been disclosed for MediaTek MT6890 and other products.
CVE-2026-20419 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 servic… https://www.cve.org/CVERecord?id=CVE-2026-20419
Post summary
CVE-2026-20419 is a WLAN firmware vulnerability that may cause remote denial of service via an uncaught exception, but no PoC, exploit, or patch details are provided.
CVE-2026-20419 Wireless LAN Firmware Denial of Service via Uncaught Exception Vulnerability https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-20419
Post summary
CVE-2026-20419 is a Denial of Service vulnerability affecting wireless LAN firmware caused by an uncaught exception.
29 of 29 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| HW | mediatek | mt6890 | - | - | - |
| HW | mediatek | mt6989tb | - | - | - |
| HW | mediatek | mt7902 | - | - | - |
| HW | mediatek | mt7915 | - | - | - |
| HW | mediatek | mt7916 | - | - | - |
| HW | mediatek | mt7920 | - | - | - |
| HW | mediatek | mt7921 | - | - | - |
| HW | mediatek | mt7922 | - | - | - |
| HW | mediatek | mt7925 | - | - | - |
| HW | mediatek | mt7927 | - | - | - |
| HW | mediatek | mt7981 | - | - | - |
| HW | mediatek | mt7986 | - | - | - |
| HW | mediatek | mt8196 | - | - | - |
| HW | mediatek | mt8668 | - | - | - |
| HW | mediatek | mt8676 | - | - | - |
| HW | mediatek | mt8678 | - | - | - |
| HW | mediatek | mt8775 | - | - | - |
| HW | mediatek | mt8791t | - | - | - |
| HW | mediatek | mt8792 | - | - | - |
| HW | mediatek | mt8793 | - | - | - |
| HW | mediatek | mt8796 | - | - | - |
| HW | mediatek | mt8873 | - | - | - |
| HW | mediatek | mt8883 | - | - | - |
| HW | mediatek | mt8893 | - | - | - |
| HW | mediatek | mt8910 | - | - | - |
| App | mediatek | nbiot_sdk | - | - | - |
| App | mediatek | software_development_kit | - | - | - |
| OS | openwrt | openwrt | 19.07.0 | - | - |
| OS | openwrt | openwrt | 21.02.0 | - | - |