Description
In Modem, there is a possible out of bounds write due to a missing 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: MOLY01778993; Issue ID: MSV-8898.
Published: 2026-10-05
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
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Remediation

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History

Mon, 05 Oct 2026 13:15:00 +0000

Type Values Removed Values Added
Title Out of Bounds Write in MediaTek Modem Enables Remote Privilege Escalation

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

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:A/AC:H/PR:N/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 08:15:00 +0000

Type Values Removed Values Added
First Time appeared Mediatek, Inc.
Mediatek, Inc. mediatek Chipset
Vendors & Products Mediatek, Inc.
Mediatek, Inc. mediatek Chipset

Mon, 05 Oct 2026 04:00:00 +0000

Type Values Removed Values Added
Title Out of Bounds Write in MediaTek Modem Enables Remote Privilege Escalation

Mon, 05 Oct 2026 02:15:00 +0000

Type Values Removed Values Added
Description In Modem, there is a possible out of bounds write due to a missing 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: MOLY01778993; Issue ID: MSV-8898.
Weaknesses CWE-787
References

Subscriptions

Mediatek, Inc. Mediatek Chipset
cve-icon MITRE

Status: PUBLISHED

Assigner: MediaTek

Published:

Updated: 2026-10-06T03:55:49.490Z

Reserved: 2025-11-03T01:30:59.032Z

Link: CVE-2026-20519

cve-icon Vulnrichment

Updated: 2026-10-05T10:35:21.652Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-05T02:16:50.393

Modified: 2026-10-06T15:05:34.080

Link: CVE-2026-20519

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-05T13:00:17Z

Weaknesses