MediaTek MT6991/MT8196 GPU pdma improper access control for register interface

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in MediaTek MT6991 and MT8196. The affected element is an unknown function of the component GPU pdma. Performing a manipulation results in improper access control for register interface. This vulnerability is cataloged as CVE-2025-20788. The attack must be initiated from a local position. There is no exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability classified as problematic has been found in MediaTek MT6991 and MT8196 (affected version unknown). This affects an unknown functionality of the component GPU pdma. The manipulation with an unknown input leads to a improper access control for register interface vulnerability. CWE is classifying the issue as CWE-1262. The product uses memory-mapped I/O registers that act as an interface to hardware functionality from software, but there is improper access control to those registers. This is going to have an impact on availability. The summary by CVE is:

In GPU pdma, there is a possible memory corruption due to a missing permission check. This could lead to local denial of service with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS10117735; Issue ID: MSV-4539.

It is possible to read the advisory at corp.mediatek.com. This vulnerability is uniquely identified as CVE-2025-20788 since 11/01/2024. The exploitability is told to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available.

Applying the patch ALPS10117735 is able to eliminate this problem.

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: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Improper access control for register interface
CWE: CWE-1262 / CWE-284 / CWE-266
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: ALPS10117735

Timelineinfo

11/01/2024 CVE reserved
12/02/2025 +396 days Advisory disclosed
12/02/2025 +0 days VulDB entry created
12/02/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: MSV-4539
Status: Confirmed

CVE: CVE-2025-20788 (🔒)
GCVE (CVE): GCVE-0-2025-20788
GCVE (VulDB): GCVE-100-333999

Entryinfo

Created: 12/02/2025 08:01
Changes: 12/02/2025 08:01 (55)
Complete: 🔍
Cache ID: 216::103

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

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