#VU103565 Uncaught Exception in MT7981 and MT7986 - CVE-2025-20637

Vulnerability identifier: #VU103565

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-20637

CWE-ID: CWE-248

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
MT7981
Mobile applications / Mobile firmware & hardware
MT7986
Mobile applications / Mobile firmware & hardware

Vendor: MediaTek

Description

The vulnerability allows a local application to perform service disruption.

The vulnerability exists due to an uncaught exception within network. A local application can perform service disruption.

Mitigation
Install security update from vendor's website.

Vulnerable software versions

MT7981: All versions

MT7986: All versions

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External links
https://corp.mediatek.com/product-security-bulletin/February-2025

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.