VULNERABILITY INTELLIGENCE
CVE-2025-7403
CVSS score7.6 HIGH
EPSS probability0.21%
CISA KEVNot currently listed
Published2025-09-19
Last modified2026-10-13
CVSS vectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
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.
Weakness classification
- CWE-123: Write-what-where Condition
Primary references
- vulnerabilities@zephyrproject.org — Patch, Vendor Advisory