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CVE-2025-7403
Good to know:
Date: September 19, 2025
Unsafe handling in bt_conn_tx_processor causes a use-after-free, resulting in a write-before-zero. The written 4 bytes are attacker-controlled, enabling precise memory corruption.
Severity Score
Severity Score
Weakness Type (CWE)
Write-what-where Condition
CWE-123Top Fix
Upgrade Version
Upgrade to version https://github.com/zephyrproject-rtos/zephyr.git - v4.2.0
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): | LOW |
| Integrity (I): | LOW |
| Availability (A): | HIGH |