VDB-210352 · CVE-2022-26475 · ALPS07310743

MediaTek MT8789 WLAN out-of-bounds write

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in MediaTek MT6761, MT6762, MT6765, MT6768, MT6769, MT6779, MT6781, MT6785, MT6789, MT6853, MT6855, MT6873, MT6875, MT6879, MT6883, MT6885, MT6889, MT6895, MT6983, MT7663, MT7902, MT7921, MT8167S, MT8175, MT8183, MT8185, MT8362A, MT8365, MT8385, MT8512A, MT8518, MT8532, MT8667, MT8695, MT8696, MT8766, MT8768, MT8786, MT8788 and MT8789. Affected is an unknown function of the component WLAN. Executing a manipulation can lead to out-of-bounds write. This vulnerability is tracked as CVE-2022-26475. The attack is restricted to local execution. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability has been found in MediaTek MT6761, MT6762, MT6765, MT6768, MT6769, MT6779, MT6781, MT6785, MT6789, MT6853, MT6855, MT6873, MT6875, MT6879, MT6883, MT6885, MT6889, MT6895, MT6983, MT7663, MT7902, MT7921, MT8167S, MT8175, MT8183, MT8185, MT8362A, MT8365, MT8385, MT8512A, MT8518, MT8532, MT8667, MT8695, MT8696, MT8766, MT8768, MT8786, MT8788 and MT8789 (Chip Software) and classified as critical. This vulnerability affects some unknown functionality of the component WLAN. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In wlan, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07310743; Issue ID: ALPS07310743.

The weakness was disclosed 10/08/2022 as ALPS07310743. The advisory is shared for download at corp.mediatek.com. This vulnerability was named CVE-2022-26475 since 03/04/2022. There are neither technical details nor an exploit publicly available.

Applying the patch ALPS07310743 is able to eliminate this problem.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Chip Software

Vendor

MediaTek

Name

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

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

NVD Base Score: 6.7
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / 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: ALPS07310743

Timelineinfo

03/04/2022 🔍
10/08/2022 +217 days 🔍
10/08/2022 +0 days 🔍
10/31/2022 +23 days 🔍

Sourcesinfo

Advisory: ALPS07310743
Status: Confirmed

CVE: CVE-2022-26475 (🔍)
GCVE (CVE): GCVE-0-2022-26475
GCVE (VulDB): GCVE-100-210352

Entryinfo

Created: 10/08/2022 09:20
Updated: 10/31/2022 12:52
Changes: 10/08/2022 09:20 (41), 10/31/2022 12:52 (11)
Complete: 🔍
Cache ID: 216::103