MediaTek MT9972 MiracastService privileges management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.5$0-$5k2.71

Summaryinfo

A vulnerability classified as very critical has been found in MediaTek MT5586, MT5862, MT5867, MT5870, MT5871, MT5872, MT5873, MT5876, MT5877, MT5879, MT5888, MT5889, MT5895, MT5896, MT5897, MT9015, MT9025, MT9026, MT9027, MT9032, MT9603, MT9618, MT9633, MT9649, MT9660, MT9676, MT9687, MT9689 and MT9972. Impacted is an unknown function of the component MiracastService. The manipulation leads to privileges management. This vulnerability is listed as CVE-2026-20516. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in MediaTek MT5586, MT5862, MT5867, MT5870, MT5871, MT5872, MT5873, MT5876, MT5877, MT5879, MT5888, MT5889, MT5895, MT5896, MT5897, MT9015, MT9025, MT9026, MT9027, MT9032, MT9603, MT9618, MT9633, MT9649, MT9660, MT9676, MT9687, MT9689 and MT9972. This issue affects some unknown processing of the component MiracastService. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In MiracastService, there is a possible escalation of privilege due to a confused deputy. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11060069 / DTV04881615; Issue ID: MSV-7882.

It is possible to read the advisory at mediatek.com. The identification of this vulnerability is CVE-2026-20516 since 11/03/2025. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/07/2026). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Applying the patch ALPS11060069/DTV04881615 is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-72198). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 9.5

VulDB Base Score: 9.9
VulDB Temp Score: 9.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: ALPS11060069/DTV04881615

Timelineinfo

11/03/2025 CVE reserved
09/07/2026 +307 days Advisory disclosed
09/07/2026 +0 days VulDB entry created
09/07/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: mediatek.com
Status: Confirmed

CVE: CVE-2026-20516 (🔒)
GCVE (CVE): GCVE-0-2026-20516
GCVE (VulDB): GCVE-100-399503
EUVD: 🔒

Entryinfo

Created: 09/07/2026 04:18
Updated: 09/07/2026 13:32
Changes: 09/07/2026 04:18 (54), 09/07/2026 13:32 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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