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CVE Record

CVE-2020-8329: A denial of service vulnerability was reported in the firmware prior to version 1.01 used in Lenovo Printer...

A denial of service vulnerability was reported in the firmware prior to version 1.01 used in Lenovo Printer LJ4010DN that could be triggered by a remote user sending a crafted packet to the device, causing an error to be displayed and preventing printer from functioning until the printer is rebooted.

MediumCVSS 5.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2020-8329 affects Lenovo Printer LJ4010DN firmware before version 1.01. A remote unauthenticated user could send a crafted packet that makes the printer show an error and stop functioning until rebooted. The impact is operational disruption, not data theft or system takeover based on the provided sources.

Executive priority

Treat this as a moderate operational reliability issue. Prioritize remediation where affected printers support critical business workflows, shared print queues, logistics, or regulated document handling.

Technical view

The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L, scoring 5.3. The vulnerability is network-reachable, low-complexity, unauthenticated, and affects availability only. The affected product named in the sources is Lenovo Printer LJ4010DN with firmware prior to 1.01.

Likely exposure

Exposure is limited to organizations using Lenovo Printer LJ4010DN devices, especially if printer management or print services are reachable from untrusted networks. The sources do not identify other Lenovo printer models or broader product families.

Exploitation context

The source bundle does not report active exploitation, and the CVE is not listed as KEV. The described attack requires network access to the printer and can cause a denial of service until the device is rebooted.

Researcher notes

The public record is concise and does not provide CWE, protocol details, exploit evidence, or vendor workaround text beyond the firmware version boundary. Avoid assuming additional affected models or exploit maturity without further Lenovo documentation.

Mitigation direction

  • Identify Lenovo Printer LJ4010DN devices in asset inventory.
  • Upgrade affected devices to firmware 1.01 or later if Lenovo guidance confirms availability.
  • Restrict printer access to trusted internal networks only.
  • Block unnecessary inbound access to printer services from user and guest networks.
  • Document reboot procedures for service restoration if disruption occurs.

Validation and detection

  • Confirm each LJ4010DN firmware version is not prior to 1.01.
  • Verify printer interfaces are not reachable from the internet or guest networks.
  • Check network segmentation rules for printer access paths.
  • Review helpdesk or monitoring records for unexplained printer errors or reboot events.
Prepared
Confidence
medium
Sources
3

Public sources used

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-2020-8329 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.3 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.3CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L3.91.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5.3Medium
CVSS 3.1 vector shape for CVE-2020-8329Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LenovoPrinter LJ4010DNunspecifiedListed
Weakness

CWE details

No CWE listed

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