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CVE-2025-7403

nvd nist
Published: Sep 19, 2025Modified: Jun 17, 2026

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6.5
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 2.8 / Impact: 3.6
Source: NVD

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 (1)

Zephyrproject
1 product
Zephyr
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Zephyr
Up to 4.1.0

Related CWEs

CWE-123
Write-what-where Condition
Any condition where the attacker has the ability to write an arbitrary value to an arbitrary location, often as the result of a buffer overflow.

References (1)

Source: vulnerabilities@zephyrproject.org
PatchVendor Advisory

Timeline

No history available yet.