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Lr12a CVE-2025-20726

HIGH
Heap-based Buffer Overflow (CWE-122)
2025-11-04 security@mediatek.com
7.5
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 28, 2026 - 19:20 vuln.today
CVE Published
Nov 04, 2025 - 07:15 nvd
HIGH 7.5

DescriptionNVD

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: MOLY01672598; Issue ID: MSV-4622.

AnalysisAI

In Modem, there is a possible out of bounds write due to an incorrect bounds check. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-122. 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: MOLY01672598; Issue ID: MSV-4622. Affected products include: Mediatek Lr12A, Mediatek Nr15, Mediatek Nr16, Mediatek Nr17, Mediatek Nr17R.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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CVE-2025-20726 vulnerability details – vuln.today

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