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Full vulnerability report · 2025
CVE-2024-10106High confidence

Ember ZNet buffer overflow in 'packet handoff' plugin

silabs.com · Ember ZNet SDK

3.7LowCVSS 3.1
Recommended action
Scheduled

Low technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Mitigation available
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
SEVD-2026-013-03 · CSAF 2.0 · revision 1.0.0 · finalSchneider Electric CPCERTMultiple Vulnerabilities on Zigbee Products
34 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • Wiser iTRV2 All Versions
  • Wiser iTRV3 All Versions
  • Wiser RTR2 All Versions
  • Wiser UFH All Versions
  • Wiser 16A Electrical Heat Switch All Versions
  • Wiser Boiler Relay All Versions
  • Exxact cFMT 16a All Versions
  • Elko cFMT 16a All Versions
  • Odace cFMT 2a All Versions
  • Merten cFMT 16a All Versions
  • Merten cFMT 2a All Versions
  • Wiser Power Micromodule All Versions
Summary
A CWE-120: A buffer overflow vulnerability exists that could cause a denial of service when a malicious device joins the network.
Remediation
Customers should immediately apply the following mitigations to reduce the risk of exploit: To keep your Zigbee network safe and prevent unauthorized access: • Restrict device access: Do not allow unknown devices to join your network. • Review hub settings: Check how your Zigbee hub manages device pairing. • Control network availability: Only open the network when adding new devices and close it immediately after. • Use install codes and avoid the well-known key: Whenever possible, use unique install codes for added security. Replace default keys with secure, unique keys.
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2024-33576

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Low technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Mitigation available
01

What, why and how

A buffer overflow vulnerability in the packet handoff plugin allows an attacker to overwrite memory outside the plugin's buffer.

What

A buffer overflow vulnerability in the packet handoff plugin allows an attacker to overwrite memory outside the plugin's buffer.

Why

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

A buffer overflow vulnerability in the packet handoff plugin allows an attacker to overwrite memory outside the plugin's buffer.

Why

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
High: exploitation depends on specific conditions
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-120 ↗

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow'). The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.ALowAvailability impact: A successful attack can cause a limited loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-120
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Mitigation available
Affected
Wiser iTRV2 All Versions; Wiser iTRV3 All Versions; Wiser RTR2 All Versions; Wiser UFH All Versions; Wiser 16A Electrical Heat Switch All Versions; Wiser Boiler Relay All Versions; Exxact cFMT 16a All Versions; Elko cFMT 16a All Versions; Odace cFMT 2a All Versions; Merten cFMT 16a All Versions; Merten cFMT 2a All Versions; Wiser Power Micromodule All Versions; Wiser FIP Micromodule All Versions; Iconic, Wiser Connected Smart Dimmer All Versions; Iconic, Wiser Connected Smart Switch, 2AX All Versions; Iconic, Wiser Connected Smart Switch, 10AX All Versions; Iconic, Connected AC Fan Controller All Versions; Iconic, Connected Smart Socket All Versions; Wiser Connected Application Module 1-Gang All Versions; Wiser Connected Application Module 2-Gang All Versions; Wiser Connected Push Button Dimmer All Versions; Wiser Connected Push Button Switch All Versions; Wiser Connected Push Button Shutter All Versions; Wiser Connected Motion Dimmer All Versions; Wiser Connected Motion Switch All Versions; Wiser Connected Rotary Dimmer All Versions; Connected Wireless Switch All Versions; Micromodule Switch All Versions; Micromodule Dimmer All Versions; Micromodule Shutter All Versions; and 4 more
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround
Customers should immediately apply the following mitigations to reduce the risk of exploit: To keep your Zigbee network safe and prevent unauthorized access: • Restrict device access: Do not allow unknown devices to join your network. • Review hub settings: Check how your Zigbee hub manages device pairing. • Control network availability: Only open the network when adding new devices and close it immediately after. • Use install codes and avoid the well-known key: Whenever possible, use unique install codes for added security. Replace default keys with secure, unique keys.
04

Evidence and provenance

Published 9 Jan 2025 · Last source change 16 Apr 2026, 19:03 UTC · CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2024-33576
Product sourceVendor CSAF · Schneider Electric CPCERT
Remediation sourceVendor CSAF · Schneider Electric CPCERT
CWE sourceCNA
NVD statusNVD not scheduled

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2024-33576↗Vendor CSAF · Schneider Electric CPCERT↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2024-10106 · cve.blacktree.nl