CVEvulnerability

CVE-2025-7403

6.5 MEDIUM Published 2025-09-19 Modified 2026-10-13 Official page ↗
Status
Analyzed
Published
2025-09-19
Last modified
2026-10-13
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.6 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-123

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.

Affected configurations

• zephyrproject zephyr (<= 4.1.0)

Related

Weakness · CWE (1)

  • CWE-123 Write-what-where Condition weakness

References