How severe is CVE-2025-20670?

CVE-2025-20670 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-20670 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-20670?

CVE-2025-20670 primarily affects Mediatek Nr16. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-20670?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-20670 have an EU (EUVD) identifier?

Yes. CVE-2025-20670 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-13330.

When was CVE-2025-20670 published?

CVE-2025-20670 was published on 2025-05-05 and last updated on 2026-06-17.

CVE-2025-20670

CVE-2025-20670 is a medium-severity vulnerability in Mediatek Nr16 with a CVSS 3.x base score of 5.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-295.

Key facts

Severity: Medium (CVSS 3.x base score 5.7)
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-13330
Weakness: CWE-295
Affected product: Mediatek Nr16
Published: 2025-05-05
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2025-20670?: 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.
How severe is CVE-2025-20670?: CVE-2025-20670 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-20670 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-20670?: CVE-2025-20670 primarily affects Mediatek Nr16. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-20670?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-20670 have an EU (EUVD) identifier?: Yes. CVE-2025-20670 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-13330.
When was CVE-2025-20670 published?: CVE-2025-20670 was published on 2025-05-05 and last updated on 2026-06-17.

References

https://corp.mediatek.com/product-security-bulletin/May-2025

Affected products (3)

cpe:2.3:o:mediatek:nr16:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:nr17:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:nr17r:-:*:*:*:*:*:*:*

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