What is the CVSS score of CVE-2025-20670?

CVE-2025-20670 has a CVSS 3.1 base score of 5.7 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.3%.

Which versions of Nr16 are affected by CVE-2025-20670?

CVE-2025-20670 presents moderate security risk rated CVSS 5.7. Exploitation could compromise the security of affected deployments.

How to fix or mitigate CVE-2025-20670?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Nr16 CVE-2025-20670

MEDIUM

Improper Certificate Validation (CWE-295)

2025-05-05 security@mediatek.com

Information Disclosure Nr16 Nr17 Nr17r

5.7

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.7 MEDIUM

AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:40 vuln.today

CVE Published

May 05, 2025 - 03:15 nvd

MEDIUM 5.7

DescriptionCVE.org

In Modem, there is a possible permission bypass due to improper certificate validation. This could lead to remote information disclosure, if a UE has connected to a rogue base station controlled by the attacker, with User execution privileges needed. User interaction is needed for exploitation. Patch ID: MOLY01334347; Issue ID: MSV-2772.

AnalysisAI

In Modem, there is a possible permission bypass due to improper certificate validation. Rated medium severity (CVSS 5.7), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-295. In Modem, there is a possible permission bypass due to improper certificate validation. This could lead to remote information disclosure, if a UE has connected to a rogue base station controlled by the attacker, with User execution privileges needed. User interaction is needed for exploitation. Patch ID: MOLY01334347; Issue ID: MSV-2772. Affected products include: 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.

CVE-2025-20670 vulnerability details – vuln.today

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