CVE-2026-20543
Summary
| CVE | CVE-2026-20543 |
|---|---|
| State | PUBLISHED |
| Assigner | MediaTek |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-05 02:16:53 UTC |
| Updated | 2026-10-08 14:30:09 UTC |
| Description | In Modem, there is a possible information disclosure due to a logic error. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01645293; Issue ID: MSV-6761. |
Risk And Classification
Primary CVSS: v3.1 5.5 MEDIUM from ADP
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.001230000 probability, percentile 0.018420000 (date 2026-10-08)
Problem Types: CWE-215 | CWE-215 CWE-215 Insertion of Sensitive Information Into Debugging Code
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | ADP | DECLARED | 5.5 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| 3.1 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | Secondary | 5.5 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Hardware | Mediatek | Mt2716 | - | All | All | All |
| Operating System | Mediatek | Mt2716 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt2735 | - | All | All | All |
| Operating System | Mediatek | Mt2735 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt2737 | - | All | All | All |
| Operating System | Mediatek | Mt2737 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6739 | - | All | All | All |
| Operating System | Mediatek | Mt6739 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6761 | - | All | All | All |
| Operating System | Mediatek | Mt6761 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6762 | - | All | All | All |
| Operating System | Mediatek | Mt6762 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6763 | - | All | All | All |
| Operating System | Mediatek | Mt6763 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6765 | - | All | All | All |
| Operating System | Mediatek | Mt6765 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6767 | - | All | All | All |
| Operating System | Mediatek | Mt6767 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6768 | - | All | All | All |
| Operating System | Mediatek | Mt6768 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6769 | - | All | All | All |
| Operating System | Mediatek | Mt6769 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6771 | - | All | All | All |
| Operating System | Mediatek | Mt6771 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6779 | - | All | All | All |
| Operating System | Mediatek | Mt6779 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6781 | - | All | All | All |
| Operating System | Mediatek | Mt6781 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6783 | - | All | All | All |
| Operating System | Mediatek | Mt6783 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6785 | - | All | All | All |
| Operating System | Mediatek | Mt6785 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6789 | - | All | All | All |
| Operating System | Mediatek | Mt6789 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6813 | - | All | All | All |
| Operating System | Mediatek | Mt6813 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6815 | - | All | All | All |
| Operating System | Mediatek | Mt6815 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6833 | - | All | All | All |
| Operating System | Mediatek | Mt6833 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6835 | - | All | All | All |
| Operating System | Mediatek | Mt6835 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6853 | - | All | All | All |
| Operating System | Mediatek | Mt6853 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6855 | - | All | All | All |
| Operating System | Mediatek | Mt6855 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6858 | - | All | All | All |
| Operating System | Mediatek | Mt6858 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6873 | - | All | All | All |
| Operating System | Mediatek | Mt6873 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6875 | - | All | All | All |
| Operating System | Mediatek | Mt6875 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6877 | - | All | All | All |
| Operating System | Mediatek | Mt6877 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6878 | - | All | All | All |
| Operating System | Mediatek | Mt6878 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6879 | - | All | All | All |
| Operating System | Mediatek | Mt6879 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6880 | - | All | All | All |
| Operating System | Mediatek | Mt6880 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6881 | - | All | All | All |
| Operating System | Mediatek | Mt6881 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6883 | - | All | All | All |
| Operating System | Mediatek | Mt6883 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6885 | - | All | All | All |
| Operating System | Mediatek | Mt6885 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6886 | - | All | All | All |
| Operating System | Mediatek | Mt6886 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6889 | - | All | All | All |
| Operating System | Mediatek | Mt6889 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6890 | - | All | All | All |
| Operating System | Mediatek | Mt6890 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6891 | - | All | All | All |
| Operating System | Mediatek | Mt6891 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6893 | - | All | All | All |
| Operating System | Mediatek | Mt6893 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6895 | - | All | All | All |
| Operating System | Mediatek | Mt6895 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6896 | - | All | All | All |
| Operating System | Mediatek | Mt6896 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6897 | - | All | All | All |
| Operating System | Mediatek | Mt6897 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6899 | - | All | All | All |
| Operating System | Mediatek | Mt6899 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6980 | - | All | All | All |
| Operating System | Mediatek | Mt6980 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6982 | - | All | All | All |
| Operating System | Mediatek | Mt6982 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6983 | - | All | All | All |
| Operating System | Mediatek | Mt6983 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6985 | - | All | All | All |
| Operating System | Mediatek | Mt6985 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6986 | - | All | All | All |
| Operating System | Mediatek | Mt6986 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6988 | - | All | All | All |
| Operating System | Mediatek | Mt6988 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6989 | - | All | All | All |
| Operating System | Mediatek | Mt6989 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6990 | - | All | All | All |
| Operating System | Mediatek | Mt6990 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6991 | - | All | All | All |
| Operating System | Mediatek | Mt6991 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt6993 | - | All | All | All |
| Operating System | Mediatek | Mt6993 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8666 | - | All | All | All |
| Operating System | Mediatek | Mt8666 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8667 | - | All | All | All |
| Operating System | Mediatek | Mt8667 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8668 | - | All | All | All |
| Operating System | Mediatek | Mt8668 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8673 | - | All | All | All |
| Operating System | Mediatek | Mt8673 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8675 | - | All | All | All |
| Operating System | Mediatek | Mt8675 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8676 | - | All | All | All |
| Operating System | Mediatek | Mt8676 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8678 | - | All | All | All |
| Operating System | Mediatek | Mt8678 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8755 | - | All | All | All |
| Operating System | Mediatek | Mt8755 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8765 | - | All | All | All |
| Operating System | Mediatek | Mt8765 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8766 | - | All | All | All |
| Hardware | Mediatek | Mt8766r | - | All | All | All |
| Operating System | Mediatek | Mt8766r Firmware | - | All | All | All |
| Operating System | Mediatek | Mt8766 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8768 | - | All | All | All |
| Operating System | Mediatek | Mt8768 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8771 | - | All | All | All |
| Operating System | Mediatek | Mt8771 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8775 | - | All | All | All |
| Operating System | Mediatek | Mt8775 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8781 | - | All | All | All |
| Operating System | Mediatek | Mt8781 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8786 | - | All | All | All |
| Operating System | Mediatek | Mt8786 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8788 | - | All | All | All |
| Hardware | Mediatek | Mt8788e | - | All | All | All |
| Operating System | Mediatek | Mt8788e Firmware | - | All | All | All |
| Operating System | Mediatek | Mt8788 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8789 | - | All | All | All |
| Operating System | Mediatek | Mt8789 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8791 | - | All | All | All |
| Hardware | Mediatek | Mt8791t | - | All | All | All |
| Operating System | Mediatek | Mt8791t Firmware | - | All | All | All |
| Operating System | Mediatek | Mt8791 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8792 | - | All | All | All |
| Operating System | Mediatek | Mt8792 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8793 | - | All | All | All |
| Operating System | Mediatek | Mt8793 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8795t | - | All | All | All |
| Operating System | Mediatek | Mt8795t Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8796 | - | All | All | All |
| Operating System | Mediatek | Mt8796 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8797 | - | All | All | All |
| Operating System | Mediatek | Mt8797 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8798 | - | All | All | All |
| Operating System | Mediatek | Mt8798 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8863 | - | All | All | All |
| Operating System | Mediatek | Mt8863 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8873 | - | All | All | All |
| Operating System | Mediatek | Mt8873 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8883 | - | All | All | All |
| Operating System | Mediatek | Mt8883 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8893 | - | All | All | All |
| Operating System | Mediatek | Mt8893 Firmware | - | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT2716 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT2735 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT2737 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6739 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6761 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6762 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6763 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6765 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6767 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6768 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6769 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6771 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6779 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6781 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6783 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6785 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6789 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6813 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6815 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6833 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6835 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6853 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6855 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6858 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6873 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6875 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6877 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6878 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6879 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6880 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6881 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6883 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6885 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6886 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6889 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6890 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6891 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6893 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6895 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6896 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6897 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6899 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6980 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6982 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6983 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6985 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6986 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6988 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6989 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6990 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6991 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6993 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8666 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8667 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8668 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8673 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8675 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8676 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8678 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8755 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8765 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8766 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8766R | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8768 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8771 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8775 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8781 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8786 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8788 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8788E | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8789 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8791 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8791T | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8792 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8793 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8795T | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8796 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8797 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8798 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8863 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8873 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8883 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8893 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.mediatek.com/product-security-bulletin/October-2026 | [email protected] | www.mediatek.com | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.