CVE-2026-20554

In Modem, there is a possible system crash 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 needed for exploitation. Patch ID: MOLY01911177; Issue ID: MSV-10122.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.mediatek.com/product-security-bulletin/November-2026

Configurations

No configuration.

History

02 Nov 2026, 17:17

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~7.5~~	v2 : unknown v3 : 7.1

02 Nov 2026, 16:18

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5

02 Nov 2026, 03:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-11-02 03:17

Updated : 2026-11-03 05:18

NVD link : CVE-2026-20554

Mitre link : CVE-2026-20554

CVE.ORG link : CVE-2026-20554

JSON object : View

Products Affected

No product.

CWE

CWE-787

Out-of-bounds Write

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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 needed for exploitation. Patch ID: MOLY01911177; Issue ID: MSV-10122."}], "lastModified": "2026-11-03T05:18:36.783", "sourceIdentifier": "security@mediatek.com"}