CVE-2025-7403

HIGH

7.6

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.

CVE Details

CVSS v3.1 Score7.6

SeverityHIGH

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

Attack VectorADJACENT_NETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published9/19/2025

Last Modified10/29/2025

Sourcenvd

Honeypot Sightings0

Affected Products

zephyrproject:zephyr

Weaknesses (CWE)

CWE-123

References

https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-9r46-cqqw-6j2j(vulnerabilities@zephyrproject.org)

IOC Correlations

No correlations recorded

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