CVE-2025-2837
Silicon Labs Gecko OS HTTP Request Handling Stack-based Buffer Overflow Remote Code Execution
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.
INFO
Published Date :
March 26, 2025, 10:15 p.m.
Last Modified :
Aug. 8, 2025, 1:03 a.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.0 | HIGH | [email protected] |
Solution
- Update Silicon Labs Gecko OS firmware.
- Apply vendor-supplied security patches.
- Validate all input lengths rigorously.
- Avoid insecure buffer copying functions.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-2837.
| URL | Resource |
|---|---|
| https://community.silabs.com/a45Vm0000000Atp | Permissions Required |
| https://www.zerodayinitiative.com/advisories/ZDI-24-871/ | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-2837 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-2837
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-2837 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-2837 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 08, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:o:silabs:gecko_os:1.0.46:*:*:*:*:*:*:* Added Reference Type Zero Day Initiative: https://community.silabs.com/a45Vm0000000Atp Types: Permissions Required Added Reference Type Zero Day Initiative: https://www.zerodayinitiative.com/advisories/ZDI-24-871/ Types: Third Party Advisory -
New CVE Received by [email protected]
Mar. 26, 2025
Action Type Old Value New Value Added 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. Added CVSS V3 AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-121 Added Reference https://community.silabs.com/a45Vm0000000Atp Added Reference https://www.zerodayinitiative.com/advisories/ZDI-24-871/