CVE-2025-2837 — HIGH (8.8) — White Hats Nepal

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.

CVSS Score

8.8

HIGH

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

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Silabs	Gecko Os	1.0.46

Related Weaknesses (CWE)

CWE-121

References

https://community.silabs.com/a45Vm0000000AtpPermissions Required
https://www.zerodayinitiative.com/advisories/ZDI-24-871/Third Party Advisory

FAQ

What is CVE-2025-2837?

CVE-2025-2837 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 ...

How severe is CVE-2025-2837?

CVE-2025-2837 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-2837?

Check the references section above for vendor advisories and patch information. Affected products include: Silabs Gecko Os.