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: ALPS11292777; Issue ID: MSV-9195.
Published: 2026-10-05
Score: 6.7 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Local Privilege Escalation
Action: Patch Now
AI Analysis

Impact

A missing bounds check in a media display component allows an out‑of‑bounds write, creating a classic memory corruption flaw identified as CWE‑787. If an attacker already holds System privileges, the flaw can be exploited to overwrite critical memory objects, potentially leading to code execution or further privilege escalation. The vulnerability does not require special user interaction to be triggered.

Affected Systems

The flaw affects MediaTek, Inc. chipsets. No specific model or firmware version is listed; all devices using the affected MediaTek display driver are susceptible until the patch is applied.

Risk and Exploitability

The EPSS score is not available and the vulnerability is not listed in CISA’s KEV catalog, so the likelihood of exploitation in the wild is uncertain. The CVSS score is 6.7. Exploitation requires an adversary to already possess System privileges, indicating that the attack vector is local and privileged. The vulnerability can, however, serve as a foothold for further local attacks once the attacker has escalated privileges. Given the moderate CVSS score and the requirement for existing local privileges, the immediate risk level is moderate but should still be mitigated promptly to prevent potential post‑escalation damage.

Generated by OpenCVE AI on October 5, 2026 at 13:11 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the MediaTek patch identified as ALPS11292777 to the affected chipset firmware or driver.
  • Check the MediaTek product‑security bulletin for the latest firmware/driver release and install it as soon as possible.
  • Review and tighten local privilege assignments so that only trusted system components run with System rights, reducing the attack surface for this out‑of‑bounds write.

Generated by OpenCVE AI on October 5, 2026 at 13:11 UTC.

Tracking

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Advisories

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History

Fri, 09 Oct 2026 15:15:00 +0000

Type Values Removed Values Added
First Time appeared Mediatek
Mediatek mt2718
Mediatek mt2718 Firmware
Mediatek mt6991
Mediatek mt6991 Firmware
Mediatek mt6993
Mediatek mt6993 Firmware
Mediatek mt8126
Mediatek mt8126 Firmware
Mediatek mt8171
Mediatek mt8171 Firmware
Mediatek mt8188
Mediatek mt8188 Firmware
Mediatek mt8189
Mediatek mt8189 Firmware
Mediatek mt8196
Mediatek mt8196 Firmware
Mediatek mt8668
Mediatek mt8668 Firmware
Mediatek mt8678
Mediatek mt8678 Firmware
Mediatek mt8793
Mediatek mt8793 Firmware
CPEs cpe:2.3:h:mediatek:mt2718:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6991:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6993:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8126:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8171:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8188:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8189:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8196:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8668:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8678:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8793:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt2718_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6991_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6993_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt8126_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt8171_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt8188_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt8189_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt8196_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt8668_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt8678_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt8793_firmware:-:*:*:*:*:*:*:*
Vendors & Products Mediatek
Mediatek mt2718
Mediatek mt2718 Firmware
Mediatek mt6991
Mediatek mt6991 Firmware
Mediatek mt6993
Mediatek mt6993 Firmware
Mediatek mt8126
Mediatek mt8126 Firmware
Mediatek mt8171
Mediatek mt8171 Firmware
Mediatek mt8188
Mediatek mt8188 Firmware
Mediatek mt8189
Mediatek mt8189 Firmware
Mediatek mt8196
Mediatek mt8196 Firmware
Mediatek mt8668
Mediatek mt8668 Firmware
Mediatek mt8678
Mediatek mt8678 Firmware
Mediatek mt8793
Mediatek mt8793 Firmware

Mon, 05 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Title Display Driver Out‑of‑Bounds Write Leading to Local Privilege Escalation

Mon, 05 Oct 2026 11:30:00 +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, 05 Oct 2026 04:15:00 +0000

Type Values Removed Values Added
Title Display Driver Out‑of‑Bounds Write Leading to Local Privilege Escalation
First Time appeared Mediatek, Inc.
Mediatek, Inc. mediatek Chipset
Vendors & Products Mediatek, Inc.
Mediatek, Inc. mediatek Chipset

Mon, 05 Oct 2026 02:15:00 +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: ALPS11292777; Issue ID: MSV-9195.
Weaknesses CWE-787
References

Subscriptions

Mediatek Mt2718 Mt2718 Firmware Mt6991 Mt6991 Firmware Mt6993 Mt6993 Firmware Mt8126 Mt8126 Firmware Mt8171 Mt8171 Firmware Mt8188 Mt8188 Firmware Mt8189 Mt8189 Firmware Mt8196 Mt8196 Firmware Mt8668 Mt8668 Firmware Mt8678 Mt8678 Firmware Mt8793 Mt8793 Firmware
Mediatek, Inc. Mediatek Chipset
cve-icon MITRE

Status: PUBLISHED

Assigner: MediaTek

Published:

Updated: 2026-10-06T03:55:45.239Z

Reserved: 2025-11-03T01:30:59.034Z

Link: CVE-2026-20530

cve-icon Vulnrichment

Updated: 2026-10-05T10:27:11.360Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-05T02:16:51.780

Modified: 2026-10-09T14:59:57.243

Link: CVE-2026-20530

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-05T13:15:07Z

Weaknesses