CVE-2025-2837

High

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.

SeverityHigh
CVSS8.8
Exploit probability42. percentile0.5%
ProductSilabs Gecko Os
PublishedMar 26, 2025
First seenMar 26, 2025
Weakness typeCWE-121CWE-121

How to fix

Affected products

ProductAffected versionsFixed in
silabs gecko_os1.0.46—

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