High severity · published Nov 26, 2025
CVE-2025-9557
Bluetooth: Mesh: Out-of-Bound Write in gen_prov_cont
7.6
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 13% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ZE
Zephyr · zephyrproject-rtos
before 4.2.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-9557
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-9557
github.com
https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-r3j3-c5v7-2ppf
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