The MediaTek Product Security Bulletin contains details of security vulnerabilities affecting MediaTek Smartphone, Tablet, AIoT, Smart display, Smart platform, OTT, Computer Vision, Audio, and TV chipsets. Device OEMs have been notified of all the issues and the corresponding security patches for at least two months before publication.
The severity of the identified vulnerabilities was conducted based on the Common Vulnerability Scoring System version 3.1 (CVSS v3.1).
The severity of the identified vulnerabilities was conducted based on the Common Vulnerability Scoring System version 3.1 (CVSS v3.1).
Summary
| Severity | CVEs |
|---|---|
| High | CVE-2025-20666 |
| Medium | CVE-2025-20667, CVE-2025-20671, CVE-2025-20668, CVE-2025-20670, CVE-2025-20665 |
Details
| CVE | CVE-2025-20666 |
|---|---|
| Title | Reachable assertion in Modem |
| Severity | High |
| Vulnerability Type | DoS |
| CWE | CWE-617 Reachable Assertion |
| Description | In Modem, there is a possible system crash due to an uncaught exception. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. |
| Affected Chipsets | MT2735, MT6833, MT6833P, MT6853, MT6853T, MT6855, MT6855T, MT6873, MT6875, MT6875T, MT6877, MT6877T, MT6877TT, MT6880, MT6883, MT6885, MT6889, MT6890, MT6891, MT6893, MT8666, MT8667, MT8673, MT8675, MT8771, MT8791, MT8791T, MT8795T, MT8797, MT8798 |
| Affected Software Versions | Modem NR15 |
| Report Source | External |
| CVE | CVE-2025-20667 |
|---|---|
| Title | Inadequate encryption strength in Modem |
| Severity | Medium |
| Vulnerability Type | ID |
| CWE | CWE-326 Inadequate Encryption Strength |
| Description | In Modem, there is a possible information disclosure due to incorrect error handling. This could lead to remote information disclosure, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. |
| Affected Chipsets | MT2735, MT2737, MT6739, MT6761, MT6762, MT6762D, MT6762M, MT6763, MT6765, MT6765T, MT6767, MT6768, MT6769, MT6769K, MT6769S, MT6769T, MT6769Z, MT6771, MT6779, MT6781, MT6783, MT6785, MT6785T, MT6785U, MT6789, MT6813, MT6833, MT6833P, MT6835, MT6835T, MT6853, MT6853T, MT6855, MT6855T, MT6873, MT6875, MT6875T, MT6877, MT6877T, MT6877TT, MT6878, MT6878M, MT6879, MT6880, MT6883, MT6885, MT6886, MT6889, MT6890, MT6891, MT6893, MT6895, MT6895TT, MT6896, MT6897, MT6899, MT6980, MT6980D, MT6983, MT6983T, MT6985, MT6985T, MT6989, MT6989T, MT6990, MT6991, MT8666, MT8667, MT8675, MT8676, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8788E, MT8789, MT8791, MT8791T, MT8797 |
| Affected Software Versions | Modem LR12A, LR13, NR15, NR16, NR17, NR17R |
| Report Source | External |
| CVE | CVE-2025-20671 |
|---|---|
| Title | Out-of-bounds write in thermal |
| Severity | Medium |
| Vulnerability Type | EoP |
| CWE | CWE-787 Out-of-bounds Write |
| Description | In thermal, there is a possible out of bounds write due to a race condition. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. |
| Affected Chipsets | MT2718, MT6878, MT6897, MT6899, MT6989, MT6991, MT8196, MT8391, MT8676, MT8678 |
| Affected Software Versions | Android 14.0, 15.0 |
| Report Source | External |
| CVE | CVE-2025-20668 |
|---|---|
| Title | Out-of-bounds write in scp |
| Severity | Medium |
| Vulnerability Type | EoP |
| CWE | CWE-787 Out-of-bounds Write |
| Description | In scp, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. |
| Affected Chipsets | MT6878, MT6897, MT6899, MT6989, MT6991, MT8775, MT8796 |
| Affected Software Versions | Android 14.0, 15.0 |
| Report Source | External |
| CVE | CVE-2025-20670 |
|---|---|
| Title | Improper certificate validation in Modem |
| Severity | Medium |
| Vulnerability Type | ID |
| CWE | CWE-295 Improper Certificate Validation |
| Description | In Modem, there is a possible permission bypass due to improper certificate validation. This could lead to remote information disclosure, if a UE has connected to a rogue base station controlled by the attacker, with User execution privileges needed. User interaction is needed for exploitation. |
| Affected Chipsets | MT2737, MT6813, MT6835, MT6835T, MT6878, MT6878M, MT6879, MT6886, MT6895, MT6895TT, MT6896, MT6897, MT6899, MT6980, MT6980D, MT6983, MT6983T, MT6985, MT6985T, MT6989, MT6989T, MT6990, MT6991, MT8666, MT8667, MT8673, MT8675, MT8676, MT8678, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8788E, MT8789, MT8791, MT8791T, MT8795T, MT8797, MT8798 |
| Affected Software Versions | Modem NR16, NR17, NR17R |
| Report Source | Internal |
| CVE | CVE-2025-20665 |
|---|---|
| Title | File and directory information exposure in devinfo |
| Severity | Medium |
| Vulnerability Type | ID |
| CWE | CWE-538 File and Directory Information Exposure |
| Description | In devinfo, there is a possible information disclosure due to a missing SELinux policy. This could lead to local information disclosure of device identifier with no additional execution privileges needed. User interaction is not needed for exploitation. |
| Affected Chipsets | MT6580, MT6761, MT6765, MT6768, MT6779, MT6781, MT6785, MT6789, MT6833, MT6835, MT6853, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6886, MT6889, MT6893, MT6895, MT6983, MT6985, MT8175, MT8195, MT8196, MT8321, MT8365, MT8370, MT8385, MT8390, MT8395, MT8666, MT8667, MT8673, MT8678, MT8765, MT8766, MT8768, MT8771, MT8775, MT8781, MT8786, MT8788, MT8788E, MT8789, MT8791T, MT8795T, MT8796, MT8797, MT8798, MT8893 |
| Affected Software Versions | Android 13.0, 14.0, 15.0 |
| Report Source | External |
Vulnerability Type Definition
| Abbreviation | Definition |
|---|---|
| RCE | Remote Code Execution |
| EoP | Elevation of Privilege |
| ID | Information Disclosure |
| DoS | Denial of Service |
| N/A | Classification not available |
Versions
| Version | Date | Description |
| 1.0 | May 5, 2025 | Bulletin published. |
Notes
Information above is generated only at the time of creation of this Security Bulletin. The list of affected chipsets could be not complete. For any further information, device OEMs can reach your MediaTek contact person if needed.
If you want to report a security vulnerability in MediaTek chipsets or products, please go to Report Security Vulnerability page on MediaTek website.
If you want to report a security vulnerability in MediaTek chipsets or products, please go to Report Security Vulnerability page on MediaTek website.