How severe is CVE-2025-20680?

CVE-2025-20680 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-20680 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-20680?

CVE-2025-20680 affects Mediatek Nbiot Sdk. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-20680?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-20680 have an EU (EUVD) identifier?

Yes. CVE-2025-20680 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20372.

When was CVE-2025-20680 published?

CVE-2025-20680 was published on 2025-07-08 and last updated on 2026-06-17.

CVE-2025-20680

CVE-2025-20680 is a critical-severity vulnerability in Mediatek Nbiot Sdk with a CVSS 3.x base score of 9.8. 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-122.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-20372
Weakness: CWE-122
Affected product: Mediatek Nbiot Sdk
Published: 2025-07-08
Last modified: 2026-06-17

Description

In Bluetooth driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00418044; Issue ID: MSV-3482.

Frequently asked questions

What is CVE-2025-20680?: In Bluetooth driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00418044; Issue ID: MSV-3482.
How severe is CVE-2025-20680?: CVE-2025-20680 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-20680 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-20680?: CVE-2025-20680 affects Mediatek Nbiot Sdk. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-20680?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-20680 have an EU (EUVD) identifier?: Yes. CVE-2025-20680 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20372.
When was CVE-2025-20680 published?: CVE-2025-20680 was published on 2025-07-08 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:mediatek:nbiot_sdk:*:*:*:*:*:*:*:*

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