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CVE-2025-12890

Good to know:

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Date: November 7, 2025

Improper handling of malformed Connection Request with the interval set to be 1 (which supposed to be illegal) and the chM 0x7CFFFFFFFF triggers a crash. The peripheral will not be connectable after it.

Severity Score

Related Resources (3)

https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8hrf-pfww-83v9
https://nvd.nist.gov/vuln/detail/CVE-2025-12890
https://www.mend.io/vulnerability-database/CVE-2025-12890

Severity Score

Weakness Type (CWE)

Improper Check or Handling of Exceptional Conditions

CWE-703

Top Fix

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Upgrade Version

Upgrade to version https://github.com/zephyrproject-rtos/zephyr.git - v4.2.0

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CVSS v3.1

Base Score:
Attack Vector (AV): ADJACENT_NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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