MediaTek MT8789 HEVC Decoder out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability has been found in MediaTek MT6781, MT6785, MT6833, MT6853, MT6853T, MT6873, MT6883, MT6885, MT6889, MT8185 and MT8789 (Chip Software) and classified as critical. This vulnerability affects an unknown part of the component HEVC Decoder. 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 hevc decoder, 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: ALPS07491374; Issue ID: ALPS07491374.

The weakness was presented 01/04/2023 as ALPS07491374. The advisory is available at This vulnerability was named CVE-2022-32637 since 06/09/2022. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

Applying the patch ALPS07491374 is able to eliminate this problem.

See VDB-217325, VDB-217326, VDB-217327 and VDB-217328 for similar entries.






CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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NVD Base Score: 6.7
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VulDB Base Score: 🔍
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Class: Out-of-bounds write
CWE: CWE-787 / CWE-119

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Threat Intelligenceinfo

Interest: 🔍
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Recommended: Patch
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0-Day Time: 🔍

Patch: ALPS07491374


06/09/2022 🔍
01/04/2023 +209 days 🔍
01/04/2023 +0 days 🔍
01/27/2023 +23 days 🔍


Advisory: ALPS07491374
Status: Confirmed

CVE: CVE-2022-32637 (🔍)
See also: 🔍


Created: 01/04/2023 09:36 AM
Updated: 01/27/2023 03:47 PM
Changes: 01/04/2023 09:36 AM (41), 01/27/2023 03:47 PM (11)
Complete: 🔍
Cache ID: 44:A83:40


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