Vulnerability · Published Nov 26, 2025 · Assigned by zephyr
CVE-2025-9557Bluetooth: Mesh: Out-of-Bound Write in gen_prov_cont
High 7.6
In plain English
A high-severity buffer overflow in Zephyr from zephyrproject-rtos. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).
Severity (CVSS 3.1)7.6High
Exploit odds (30 days)0.2%top 87.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An out-of-bound write can lead to an arbitrary code execution. Even on devices with some form of memory protection, this can still lead to a crash and a resultant denial of service.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| zephyrproject-rtos | Zephyr | * – before 4.2.2 |
Weakness: CWE-120 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H