MediaTek MT8798 WLAN out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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3.7$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in MediaTek MT5221, MT6781, MT6789, MT6833, MT6855, MT6877, MT6879, MT6895, MT6983, MT7663, MT7668, MT7902, MT7921, MT8167S, MT8168, MT8169, MT8175, MT8185, MT8362A, MT8365, MT8385, MT8518, MT8532, MT8675, MT8695, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8797 and MT8798. This impacts an unknown function of the component WLAN. Such manipulation leads to out-of-bounds. This vulnerability is uniquely identified as CVE-2023-20677. Local access is required to approach this attack. No exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in MediaTek MT5221, MT6781, MT6789, MT6833, MT6855, MT6877, MT6879, MT6895, MT6983, MT7663, MT7668, MT7902, MT7921, MT8167S, MT8168, MT8169, MT8175, MT8185, MT8362A, MT8365, MT8385, MT8518, MT8532, MT8675, MT8695, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8797 and MT8798 (Chip Software) and classified as problematic. Affected by this issue is an unknown functionality of the component WLAN. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality. CVE summarizes:

In wlan, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07588413; Issue ID: ALPS07588436.

The weakness was disclosed 04/07/2023 as ALPS07588413. The advisory is shared for download at corp.mediatek.com. This vulnerability is handled as CVE-2023-20677 since 10/28/2022. There are neither technical details nor an exploit publicly available.

Applying the patch ALPS07588413 is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-24856). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.7

VulDB Base Score: 2.3
VulDB Temp Score: 2.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.4
NVD Vector: 🔍

CNA Base Score: 4.4
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
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: ALPS07588413

Timelineinfo

10/28/2022 🔍
04/07/2023 +161 days 🔍
04/07/2023 +0 days 🔍
08/31/2025 +877 days 🔍

Sourcesinfo

Advisory: ALPS07588413
Status: Confirmed

CVE: CVE-2023-20677 (🔍)
GCVE (CVE): GCVE-0-2023-20677
GCVE (VulDB): GCVE-100-225212
EUVD: 🔍

Entryinfo

Created: 04/07/2023 08:48
Updated: 08/31/2025 15:04
Changes: 04/07/2023 08:48 (41), 04/24/2023 09:14 (11), 10/23/2024 18:30 (26), 08/31/2025 15:04 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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