MediaTek MT9982 Vcu type confusion

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability was found in MediaTek MT5696, MT5836, MT5838, MT6768, MT6769, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8185, MT8195, MT8395, MT8781, MT8786, MT8789, MT8791, MT8797, MT9000, MT9023, MT9025, MT9618, MT9653, MT9687, MT9689, MT9902, MT9932, MT9952, MT9972 and MT9982. It has been declared as problematic. This affects an unknown function of the component Vcu. The manipulation results in type confusion. This vulnerability is identified as CVE-2023-20673. The attack is only possible with local access. There is not any exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in MediaTek MT5696, MT5836, MT5838, MT6768, MT6769, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8185, MT8195, MT8395, MT8781, MT8786, MT8789, MT8791, MT8797, MT9000, MT9023, MT9025, MT9618, MT9653, MT9687, MT9689, MT9902, MT9932, MT9952, MT9972 and MT9982 (Chip Software). Affected is some unknown processing of the component Vcu. The manipulation with an unknown input leads to a type confusion vulnerability. CWE is classifying the issue as CWE-843. The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In vcu, there is a possible memory corruption due to type confusion. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07519103; Issue ID: ALPS07519103.

The weakness was released 05/16/2023 as ALPS07519103. The advisory is shared for download at corp.mediatek.com. This vulnerability is traded as CVE-2023-20673 since 10/28/2022. There are neither technical details nor an exploit publicly available.

Applying the patch ALPS07519103 is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-24852). Once again VulDB remains the best 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: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
NVD Vector: 🔍

CNA Base Score: 6.7
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Type confusion
CWE: CWE-843
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

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: ALPS07519103

Timelineinfo

10/28/2022 🔍
05/16/2023 +200 days 🔍
05/16/2023 +0 days 🔍
08/29/2025 +836 days 🔍

Sourcesinfo

Advisory: ALPS07519103
Status: Confirmed

CVE: CVE-2023-20673 (🔍)
GCVE (CVE): GCVE-0-2023-20673
GCVE (VulDB): GCVE-100-229116
EUVD: 🔍

Entryinfo

Created: 05/16/2023 08:13
Updated: 08/29/2025 21:51
Changes: 05/16/2023 08:13 (40), 01/25/2025 00:50 (35), 08/29/2025 21:51 (1)
Complete: 🔍
Cache ID: 216::103

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