In Modem, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote escalation of privilege, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01876654 / MOLY01774038; Issue ID: MSV-9803.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
MediaTek, Inc. MediaTek chipset unaffected
Version Status Constraints
MT2716 affected —
MT2735 affected —
MT2737 affected —
MT6739 affected —
MT6761 affected —
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MT8755 affected —
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MT8766R affected —
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MT8771 affected —
MT8775 affected —
MT8781 affected —
MT8786 affected —
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MT8863 affected —
MT8873 affected —
MT8875 affected —
MT8883 affected —
MT8893 affected —

No data.

No data.

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No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.mediatek.com/product-security-bulletin/November-2026 cve-icon cve-icon
History

Mon, 02 Nov 2026 03:45:00 +0000

Type Values Removed Values Added
Title Out-of-Bounds Write in MediaTek Modem Enables Remote Privilege Escalation via Rogue Base Station

Mon, 02 Nov 2026 02:45:00 +0000

Type Values Removed Values Added
Description In Modem, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote escalation of privilege, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01876654 / MOLY01774038; Issue ID: MSV-9803.
Weaknesses CWE-787
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: MediaTek

Published:

Updated: 2026-11-02T02:33:02.918Z

Reserved: 2025-11-03T01:30:59.041Z

Link: CVE-2026-20546

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-02T03:17:31.390

Modified: 2026-11-02T03:17:31.390

Link: CVE-2026-20546

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-02T03:30:06Z

Weaknesses