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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.

PUBLISHED Reserved 2025-07-10 | Published 2025-09-19 | Updated 2025-09-19 | Assigner zephyr




HIGH: 7.6CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Problem types

Write-what-where Condition

Product status

Default status
unaffected

* (git)
affected

References

github.com/...zephyr/security/advisories/GHSA-9r46-cqqw-6j2j

cve.org (CVE-2025-7403)

nvd.nist.gov (CVE-2025-7403)

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