CVE-2025-2837

8.8 highEPSS 0.5%

High (8.8) in silabs gecko os. EPSS 0.5% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.0

8.8 high

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 42% of CVEs (scores of 2026-10-31)
CWE: CWE-121
Published: 2025-03-26
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

silabs:gecko_os

References

Check your stack JSON