| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.8 | $0-$5k | 1.98+ |
Summary
A vulnerability described as very critical has been identified in MediaTek MT2718, MT6769, MT6781, MT6789, MT6833, MT6835, MT6853, MT6855, MT6858, MT6877, MT6878, MT6881, MT6886, MT6893, MT6895, MT6897, MT6899, MT6989, MT6991, MT6993, MT8126, MT8168, MT8171, MT8186, MT8188, MT8189, MT8195, MT8196, MT8321, MT8365, MT8367, MT8385, MT8390, MT8391, MT8668, MT8676, MT8678, MT8696, MT8755, MT8766, MT8768, MT8771, MT8775, MT8781, MT8786, MT8788E, MT8791T, MT8792, MT8793, MT8796, MT8797, MT8798, MT8799, MT8873, MT8883, MT8893 and MT8910. This issue affects some unknown processing of the component Audio HAL. Executing a manipulation can lead to input validation. This vulnerability is tracked as CVE-2026-20512. The attack is restricted to local execution. No exploit exists.
Details
A vulnerability classified as very critical was found in MediaTek MT2718, MT6769, MT6781, MT6789, MT6833, MT6835, MT6853, MT6855, MT6858, MT6877, MT6878, MT6881, MT6886, MT6893, MT6895, MT6897, MT6899, MT6989, MT6991, MT6993, MT8126, MT8168, MT8171, MT8186, MT8188, MT8189, MT8195, MT8196, MT8321, MT8365, MT8367, MT8385, MT8390, MT8391, MT8668, MT8676, MT8678, MT8696, MT8755, MT8766, MT8768, MT8771, MT8775, MT8781, MT8786, MT8788E, MT8791T, MT8792, MT8793, MT8796, MT8797, MT8798, MT8799, MT8873, MT8883, MT8893 and MT8910. This vulnerability affects an unknown code block of the component Audio HAL. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
In Audio HAL, there is a possible escalation of privilege due to improper input validation. 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. Patch ID: ALPS11087540; Issue ID: MSV-8246.
The advisory is available at mediatek.com. This vulnerability was named CVE-2026-20512 since 11/03/2025. The exploitation appears to be easy. Local access is required to approach this attack. Additional levels of successful authentication are required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/07/2026).
Applying the patch ALPS11087540 is able to eliminate this problem.
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Product
Type
Vendor
Name
- MT2718
- MT6769
- MT6781
- MT6789
- MT6833
- MT6835
- MT6853
- MT6855
- MT6858
- MT6877
- MT6878
- MT6881
- MT6886
- MT6893
- MT6895
- MT6897
- MT6899
- MT6989
- MT6991
- MT6993
- MT8126
- MT8168
- MT8171
- MT8186
- MT8188
- MT8189
- MT8195
- MT8196
- MT8321
- MT8365
- MT8367
- MT8385
- MT8390
- MT8391
- MT8668
- MT8676
- MT8678
- MT8696
- MT8755
- MT8766
- MT8768
- MT8771
- MT8775
- MT8781
- MT8786
- MT8788E
- MT8791T
- MT8792
- MT8793
- MT8796
- MT8797
- MT8798
- MT8799
- MT8873
- MT8883
- MT8893
- MT8910
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.2VulDB Meta Temp Score: 7.8
VulDB Base Score: 8.2
VulDB Temp Score: 7.8
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Input validationCWE: CWE-20
CAPEC: 🔒
ATT&CK: 🔒
Physical: Partially
Local: Yes
Remote: No
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔒
Patch: ALPS11087540
Timeline
11/03/2025 CVE reserved09/07/2026 Advisory disclosed
09/07/2026 VulDB entry created
09/07/2026 VulDB entry last update
Sources
Advisory: mediatek.comStatus: Confirmed
CVE: CVE-2026-20512 (🔒)
GCVE (CVE): GCVE-0-2026-20512
GCVE (VulDB): GCVE-100-399502
Entry
Created: 09/07/2026 04:18Changes: 09/07/2026 04:18 (54)
Complete: 🔍
Cache ID: 216::103
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