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-2025-20672 |
| Medium | CVE-2025-20673, CVE-2025-20674, CVE-2025-20675, CVE-2025-20676, CVE-2025-20677, CVE-2025-20678 |
Details
| CVE | CVE-2025-20672 |
|---|---|
| Title | Heap overflow in Bluetooth |
| Severity | High |
| Vulnerability Type | EoP |
| CWE | CWE-122 Heap Overflow |
| Description | In Bluetooth driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. |
| Affected Chipsets | MT7902, MT7921, MT7922, MT7925, MT7927 |
| Affected Software Versions | NB SDK release 3.6 and before |
| Report Source | External |
| CVE | CVE-2025-20673 |
|---|---|
| Title | Null pointer dereference in wlan |
| Severity | Medium |
| Vulnerability Type | DoS |
| CWE | CWE-476 NULL Pointer Dereference |
| Description | In wlan STA driver, there is a possible system crash due to an uncaught exception. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. |
| Affected Chipsets | MT7902, MT7921, MT7922, MT7925, MT7927 |
| Affected Software Versions | NB SDK release 3.6 and before |
| Report Source | External |
| CVE | CVE-2025-20674 |
|---|---|
| Title | Incorrect authorization in wlan |
| Severity | Medium |
| Vulnerability Type | EoP |
| CWE | CWE-863 Incorrect Authorization |
| Description | In wlan AP driver, there is a possible way to inject arbitrary packet due to a missing permission check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. |
| Affected Chipsets | MT6890, MT6990, MT7915, MT7916, MT7981, MT7986, MT7990, MT7992, MT7993 |
| Affected Software Versions | SDK release 7.6.7.2 and before / OpenWrt 19.07, 21.02 (MT6890) / OpenWrt 21.02, 23.05 (MT6990) |
| Report Source | External |
| CVE | CVE-2025-20675 |
|---|---|
| Title | Null pointer dereference in wlan |
| Severity | Medium |
| Vulnerability Type | DoS |
| CWE | CWE-476 NULL Pointer Dereference |
| Description | In wlan STA driver, there is a possible system crash due to an uncaught exception. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. |
| Affected Chipsets | MT7902, MT7921, MT7922, MT7925, MT7927 |
| Affected Software Versions | NB SDK release 3.6 and before |
| Report Source | External |
| CVE | CVE-2025-20676 |
|---|---|
| Title | Null pointer dereference in wlan |
| Severity | Medium |
| Vulnerability Type | DoS |
| CWE | CWE-476 NULL Pointer Dereference |
| Description | In wlan STA driver, there is a possible system crash due to an uncaught exception. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. |
| Affected Chipsets | MT7902, MT7921, MT7922, MT7925, MT7927 |
| Affected Software Versions | NB SDK release 3.6 and before |
| Report Source | External |
| CVE | CVE-2025-20677 |
|---|---|
| Title | Null pointer dereference in Bluetooth |
| Severity | Medium |
| Vulnerability Type | DoS |
| CWE | CWE-476 NULL Pointer Dereference |
| Description | In Bluetooth driver, there is a possible system crash due to an uncaught exception. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. |
| Affected Chipsets | MT7902, MT7921, MT7922, MT7925, MT7927 |
| Affected Software Versions | NB SDK release 3.6 and before |
| Report Source | External |
| CVE | CVE-2025-20678 |
|---|---|
| Title | Uncontrolled recursion in ims service |
| Severity | Medium |
| Vulnerability Type | DoS |
| CWE | CWE-674 Uncontrolled Recursion |
| Description | In ims service, there is a possible system crash due to incorrect error handling. 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 | 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, MT6983, MT6983T, MT6985, MT6985T, MT6989, MT6989T, MT6990, MT6991, MT8666, MT8667, MT8673, MT8675, MT8676, MT8678, MT8765, MT8766, MT8766R, MT8768, MT8771, MT8781, MT8786, MT8788, MT8788E, MT8789, MT8791, MT8791T, MT8795T, MT8797, MT8798, MT8863, MT8873, MT8883, MT8893 |
| Affected Software Versions | Modem LR12A, LR13, NR15, NR16, NR17, NR17R |
| Report Source | Internal |
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 | June 2, 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.