Description
In display, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10320471; Issue ID: MSV-5536.
Published: 2026-03-02
Score: 6.7 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Local Privilege Escalation
Action: Patch Immediately
AI Analysis

Impact

A missing bounds check in a MediaTek display handling routine allows an out‑of‑bounds write that can corrupt memory. The defect can be leveraged by a local attacker to elevate privileges, granting an already active process additional system rights. No user interaction is required to trigger the flaw. This control failure manifests as a classic out‑of‑bounds write (CWE‑787).

Affected Systems

All MediaTek chipsets listed in the CPE list—including MT6739, MT6761, MT6765, MT6768, MT6781, MT6789, MT6833, MT6835, MT6853, MT6855, MT6877, MT6878, MT6879, MT6883, MT6885, MT6886, MT6889, MT6893, MT6895, MT6897, MT6899, MT6983, MT6985, MT6989, MT6991, MT6993, MT8196, MT8678, MT8793—as well as devices running Android 14, 15, and 16 built on these chipsets are susceptible.

Risk and Exploitability

The CVSS score of 6.7 indicates a medium security impact, while an EPSS score of less than 1 % points to a very low probability of exploitation in the wild. The vulnerability is not listed in the CISA KEV catalog, meaning no widespread public exploitation has been documented. An attacker, once able to execute code in the affected environment, can exploit the out‑of‑bounds write to read or modify arbitrary memory, thereby achieving local privilege escalation. The absence of user interaction prerequisites simplifies local exploitation scenarios.

Generated by OpenCVE AI on April 16, 2026 at 14:38 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the official MediaTek update identified by patch ID ALPS10320471, which fixes the missing bounds check in the display driver.
  • Reboot the device to load the new firmware.
  • In the interim, restrict local code execution by enforcing least‑privilege user profiles and disabling nonessential display services until the patch can be applied.

Generated by OpenCVE AI on April 16, 2026 at 14:38 UTC.

Tracking

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Advisories

No advisories yet.

History

Thu, 16 Apr 2026 15:00:00 +0000

Type Values Removed Values Added
Title Out‑of‑Bounds Write in MediaTek Display Code Enables Local Privilege Escalation

Tue, 03 Mar 2026 13:15:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google android
Mediatek
Mediatek mt6739
Mediatek mt6761
Mediatek mt6765
Mediatek mt6768
Mediatek mt6781
Mediatek mt6789
Mediatek mt6833
Mediatek mt6835
Mediatek mt6853
Mediatek mt6855
Mediatek mt6877
Mediatek mt6878
Mediatek mt6879
Mediatek mt6883
Mediatek mt6885
Mediatek mt6886
Mediatek mt6889
Mediatek mt6893
Mediatek mt6895
Mediatek mt6897
Mediatek mt6899
Mediatek mt6983
Mediatek mt6985
Mediatek mt6989
Mediatek mt6991
Mediatek mt6993
Mediatek mt8196
Mediatek mt8678
Mediatek mt8793
CPEs cpe:2.3:h:mediatek:mt6739:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6761:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6765:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6768:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6781:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6789:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6833:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6835:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6853:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6855:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6877:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6878:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6879:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6883:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6885:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6886:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6889:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6893:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6895:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6897:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6899:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6983:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6985:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6989:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6991:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6993:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8196:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8678:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8793:-:*:*:*:*:*:*:*
cpe:2.3:o:google:android:14.0:*:*:*:*:*:*:*
cpe:2.3:o:google:android:15.0:*:*:*:*:*:*:*
cpe:2.3:o:google:android:16.0:-:*:*:*:*:*:*
Vendors & Products Google
Google android
Mediatek
Mediatek mt6739
Mediatek mt6761
Mediatek mt6765
Mediatek mt6768
Mediatek mt6781
Mediatek mt6789
Mediatek mt6833
Mediatek mt6835
Mediatek mt6853
Mediatek mt6855
Mediatek mt6877
Mediatek mt6878
Mediatek mt6879
Mediatek mt6883
Mediatek mt6885
Mediatek mt6886
Mediatek mt6889
Mediatek mt6893
Mediatek mt6895
Mediatek mt6897
Mediatek mt6899
Mediatek mt6983
Mediatek mt6985
Mediatek mt6989
Mediatek mt6991
Mediatek mt6993
Mediatek mt8196
Mediatek mt8678
Mediatek mt8793

Mon, 02 Mar 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.7, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 02 Mar 2026 09:00:00 +0000

Type Values Removed Values Added
Description In display, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10320471; Issue ID: MSV-5536.
Weaknesses CWE-787
References

cve-icon MITRE

Status: PUBLISHED

Assigner: MediaTek

Published:

Updated: 2026-03-30T13:05:29.671Z

Reserved: 2025-11-03T01:30:59.010Z

Link: CVE-2026-20428

cve-icon Vulnrichment

Updated: 2026-03-02T13:41:05.585Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-02T09:16:16.050

Modified: 2026-03-03T13:07:02.577

Link: CVE-2026-20428

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-16T14:45:25Z

Weaknesses