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CVE-2025-7403

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CVE-2025-7403

Published: Sep 19, 2025

Modified: Sep 19, 2025

PUBLISHED

CVSS v3.1

7.6

HIGH

Description

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.

VendorProductVersions

zephyrproject-rtos

Zephyr

affected
* - <= 4.1

Weaknesses (CWE)

CWE-123

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

High

References

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