CVE-2023-51393

Potential DoS due to BusFault and Assert in Ember ZNet legacy packet buffer

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

Due to an allocation of resources without limits, an uncontrolled resource consumption vulnerability exists in Silicon Labs Ember ZNet SDK prior to v7.4.0.0 (delivered as part of Silicon Labs Gecko SDK v4.4.0) which may enable attackers to trigger a bus fault and crash of the device, requiring a reboot in order to rejoin the network.

Debido a una asignación de recursos sin límites, existe una vulnerabilidad de consumo de recursos incontrolado en Silicon Labs Ember ZNet SDK anterior a v7.4.0.0 (entregado como parte de Silicon Labs Gecko SDK v4.4.0) lo que puede permitir a los atacantes provocar una falla en el bus y una falla del dispositivo, lo que requiere un reinicio para volver a unirse a la red.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-12-18 CVE Reserved
2024-02-23 CVE Published
2025-04-15 EPSS Updated
2025-04-22 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption
CWE-770: Allocation of Resources Without Limits or Throttling

CAPEC

CAPEC-595: Connection Reset

References (1)

URL	Tag	Source
https://community.silabs.com/068Vm000001NaAM

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Silabs Search vendor "Silabs"		Emberznet Sdk Search vendor "Silabs" for product "Emberznet Sdk"				*		-		Affected