#VU105186 Improper Validation of Syntactic Correctness of Input in MediaTek products - CVE-2025-20644

Vulnerability identifier: #VU105186

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-2025-20644

CWE-ID: CWE-1286

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
MT2735
Mobile applications / Mobile firmware & hardware
MT2737
Mobile applications / Mobile firmware & hardware
MT6833
Mobile applications / Mobile firmware & hardware
MT6833P
Mobile applications / Mobile firmware & hardware
MT6855
Mobile applications / Mobile firmware & hardware
MT6855T
Mobile applications / Mobile firmware & hardware
MT6875T
Mobile applications / Mobile firmware & hardware
MT6877T
Mobile applications / Mobile firmware & hardware
MT6877TT
Mobile applications / Mobile firmware & hardware
MT6879
Mobile applications / Mobile firmware & hardware
MT6880
Mobile applications / Mobile firmware & hardware
MT6886
Mobile applications / Mobile firmware & hardware
MT6890
Mobile applications / Mobile firmware & hardware
MT6895
Mobile applications / Mobile firmware & hardware
MT6895TT
Mobile applications / Mobile firmware & hardware
MT6896
Mobile applications / Mobile firmware & hardware
MT6980
Mobile applications / Mobile firmware & hardware
MT6980D
Mobile applications / Mobile firmware & hardware
MT6983
Mobile applications / Mobile firmware & hardware
MT6983T
Mobile applications / Mobile firmware & hardware
MT6985
Mobile applications / Mobile firmware & hardware
MT6985T
Mobile applications / Mobile firmware & hardware
MT6989
Mobile applications / Mobile firmware & hardware
MT6989T
Mobile applications / Mobile firmware & hardware
MT6990
Mobile applications / Mobile firmware & hardware
MT8673
Mobile applications / Mobile firmware & hardware
MT8791T
Mobile applications / Mobile firmware & hardware
MT8795T
Mobile applications / Mobile firmware & hardware
MT8798
Mobile applications / Mobile firmware & hardware
MT6853
Hardware solutions / Firmware
MT6853T
Hardware solutions / Firmware
MT6873
Hardware solutions / Firmware
MT6875
Hardware solutions / Firmware
MT6877
Hardware solutions / Firmware
MT6883
Hardware solutions / Firmware
MT6885
Hardware solutions / Firmware
MT6889
Hardware solutions / Firmware
MT6891
Hardware solutions / Firmware
MT6893
Hardware solutions / Firmware

Vendor: MediaTek

Description

The vulnerability allows a local application to perform service disruption.

The vulnerability exists due to incorrect error handling within Modem. A local application can perform service disruption.

Mitigation
Install security update from vendor's website.

Vulnerable software versions

MT2735: All versions

MT2737: All versions

MT6833: All versions

MT6833P: All versions

MT6853: All versions

MT6853T: All versions

MT6855: All versions

MT6855T: All versions

MT6873: All versions

MT6875: All versions

MT6875T: All versions

MT6877: All versions

MT6877T: All versions

MT6877TT: All versions

MT6879: All versions

MT6880: All versions

MT6883: All versions

MT6885: All versions

MT6886: All versions

MT6889: All versions

MT6890: All versions

MT6891: All versions

MT6893: All versions

MT6895: All versions

MT6895TT: All versions

MT6896: All versions

MT6980: All versions

MT6980D: All versions

MT6983: All versions

MT6983T: All versions

MT6985: All versions

MT6985T: All versions

MT6989: All versions

MT6989T: All versions

MT6990: All versions

MT8673: All versions

MT8791T: All versions

MT8795T: All versions

MT8798: All versions

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