CVE-2025-2837: Silicon Labs Gecko OS HTTP Request Handling Stack-based Buffer Overflow Remote Code Execution Vulnerability
Description
Silicon Labs Gecko OS HTTP Request Handling Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Silicon Labs Gecko OS. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the handling of HTTP requests. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-23245.
Classification
CVE ID: CVE-2025-2837
CVSS Base Severity: HIGH
CVSS Base Score: 8.8
CVSS Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Problem Types
CWE-121: Stack-based Buffer OverflowAffected Products
Vendor: Silicon Labs
Product: Gecko OS
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.1% (probability of being exploited)
EPSS Percentile: 28.83% (scored less or equal to compared to others)
EPSS Date: 2025-04-24 (when was this score calculated)
References
https://nvd.nist.gov/vuln/detail/CVE-2025-2837https://www.zerodayinitiative.com/advisories/ZDI-24-871/
https://community.silabs.com/a45Vm0000000Atp