MediaTek MT8793 use after free

CVSS Meta Temp Score
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CTI Interest Score
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7.8$0-$5k2.44

Summaryinfo

A vulnerability was found in MediaTek MT2735, MT2737, MT6768, MT6781, MT6789, MT6853, MT6855, MT6877, MT6878, MT6885, MT6886, MT6890, MT6895, MT6897, MT6899, MT6980D, MT6985, MT6988, MT6989, MT6990, MT6991, MT6993, MT8168, MT8186, MT8188, MT8189, MT8195, MT8196, MT8365, MT8367, MT8390, MT8391, MT8668, MT8678 and MT8793. It has been declared as very critical. Affected is an unknown function. Executing a manipulation can lead to use after free. This vulnerability is handled as CVE-2026-20574. It is possible to launch the attack on the local host. There is not any exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability has been found in MediaTek MT2735, MT2737, MT6768, MT6781, MT6789, MT6853, MT6855, MT6877, MT6878, MT6885, MT6886, MT6890, MT6895, MT6897, MT6899, MT6980D, MT6985, MT6988, MT6989, MT6990, MT6991, MT6993, MT8168, MT8186, MT8188, MT8189, MT8195, MT8196, MT8365, MT8367, MT8390, MT8391, MT8668, MT8678 and MT8793 and classified as very critical. This vulnerability affects some unknown processing. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In afe, there is a possible memory corruption due to use after free. 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: ALPS11431400; Issue ID: MSV-9922.

The advisory is shared for download at mediatek.com. This vulnerability was named CVE-2026-20574 since 11/03/2025. The exploitation appears to be easy. The attack needs to be approached locally. The exploitation needs additional levels of successful authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/02/2026).

Applying the patch ALPS11431400 is able to eliminate this problem.

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Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.2
VulDB Meta Temp Score: 7.8

VulDB Base Score: 8.2
VulDB Temp Score: 7.8
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: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

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: ALPS11431400

Timelineinfo

11/03/2025 CVE reserved
11/02/2026 +364 days Advisory disclosed
11/02/2026 +0 days VulDB entry created
11/02/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: mediatek.com
Status: Confirmed

CNA: MediaTek
CVE: CVE-2026-20574 (🔒)

GCVE (CVE): GCVE-0-2026-20574
GCVE (VulDB): GCVE-100-429736

Entryinfo

Created: 11/02/2026 04:05
Changes: 11/02/2026 04:05 (53)
Complete: 🔍
Cache ID: 216::103

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