CVE-2023-51393

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

HIGH
7.5
CVSS Score
Published: February 23, 2024 at 07:14 PM UTC
Updated: June 17, 2026 at 06:40 AM UTC
2 products affected across 1 vendorEmberznetEmberznet SDK

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Severity
HIGH7.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 7.4.0
Affected range stops below 7.4.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.4.0.0, so it looks safe — our inference, not a vendor statement
v < 7.4.0.0
Affected range stops below 7.4.0.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-770

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