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CVE-2024-23973

Silicon Labs Gecko OS HTTP GET Request Handling Stack-based Buffer Overflow

Published: Jan 30, 2025Updated: Sep 30, 2025 Sources: CVE List NVDCWE-120
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.5%
Top 60.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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 GET 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.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-120

Affected Products

gecko ossilabs
Embedded
Hardware Firmware / cpu-gpu
Gecko OSSilicon Labs
Embedded
Operating Systems / rtos-embedded-os
silabscommercialUSHardware Firmwareaka silicon labs, gecko sdk, z-wave sdk, emberznet
silicon labscommercialUSOperating Systemsaka gecko platform, gecko os, 500 series

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://community.silabs.com/a45Vm0000000Atp
community.silabs.com
https://www.zerodayinitiative.com/advisories/ZDI-24-873/
zerodayinitiative.com

Timeline

Published
Jan 30, 2025
Last Updated
Sep 30, 2025

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