Medium severity · published Jul 8, 2025
CVE-2025-20687
In Bluetooth driver, there is a possible out of bounds read due to an incorrect bounds check
5.5
CVSS
0.2%
EPSS
No
On KEV
Description
In Bluetooth driver, there is a possible out of bounds read due to an incorrect bounds check. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00418045; Issue ID: MSV-3481.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NS
Nbiot Sdk · Mediatek
through 3.6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-20687
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-20687
Vendor Advisory
https://corp.mediatek.com/product-security-bulletin/July-2025
More from Nbiot Sdk
9.8
CVE-2025-20680
In Bluetooth driver, there is a possible out of bounds write due to an incorrect bounds check
9.8
CVE-2022-26437
In httpclient, there is a possible out of bounds write due to uninitialized data
9.3
CVE-2026-20407
In wlan STA driver, there is a possible escalation of privilege due to a missing bounds check
7.8
CVE-2026-20423
In wlan STA driver, there is a possible out of bounds write due to a missing bounds check
6.7
CVE-2026-20436
In wlan STA driver, there is a possible escalation of privilege due to a missing bounds check