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CVE Record

CVE-2023-33768: Incorrect signature verification of the firmware during the Device Firmware Update process of Belkin Wemo S...

Incorrect signature verification of the firmware during the Device Firmware Update process of Belkin Wemo Smart Plug WSP080 v1.2 allows attackers to cause a Denial of Service (DoS) via a crafted firmware file.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

Belkin Wemo Smart Plug WSP080 v1.2 may not correctly verify firmware signatures during firmware updates. A malicious firmware file could make the device unavailable. The public record does not provide CVSS scoring, confirmed patch details, or active exploitation evidence.

Executive priority

Treat this as a targeted IoT availability risk, not a broad enterprise emergency. Prioritize sites where WSP080 v1.2 plugs control operationally important equipment or are difficult to replace quickly.

Technical view

CVE-2023-33768 describes incorrect signature verification in the Device Firmware Update process for Belkin Wemo Smart Plug WSP080 v1.2, enabling denial of service through a crafted firmware file. The source bundle does not specify attack vector, privileges, scope, or recovery requirements.

Likely exposure

Exposure appears limited to environments using Belkin Wemo Smart Plug WSP080 v1.2. Business impact depends on where these plugs are deployed and whether untrusted firmware updates can be introduced. The CVE record’s affected-product metadata is incomplete.

Exploitation context

The CVE is not listed as CISA KEV in the supplied bundle. A public GitHub reference exists, but the provided sources do not establish active exploitation, exploit maturity, or required attacker position.

Researcher notes

Key gaps are missing CVSS, incomplete affected metadata, unclear attacker prerequisites, and no named fix in the supplied sources. Analysis should stay bounded to WSP080 v1.2 and denial-of-service impact unless additional vendor evidence is found.

Mitigation direction

  • Inventory Wemo Smart Plug WSP080 v1.2 devices.
  • Check Belkin/Wemo guidance for firmware updates, replacement, or recovery.
  • Restrict DFU or management access to trusted users and networks.
  • Do not install firmware from untrusted or unofficial sources.
  • Plan replacement where vendor support or remediation is unavailable.

Validation and detection

  • Confirm device model and firmware version from asset records or device UI.
  • Review whether firmware updates are sourced only from trusted channels.
  • Check for unexplained outages following firmware update attempts.
  • Verify whether vendor guidance names a fixed firmware or recovery path.
  • Do not test crafted firmware on production devices.
Prepared
Confidence
medium
Sources
5

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2023-33768 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.