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CVE Record

CVE-2020-8330: 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, preventing subsequent print jobs 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-2020-8330 affects Lenovo Printer LJ4010DN firmware before version 1.01. A remote unauthenticated user could send a crafted packet that stops later print jobs until the device is rebooted. The issue affects availability only; the provided sources do not indicate data theft or system compromise.

Executive priority

Treat this as a targeted availability risk, not a broad compromise risk. Prioritize affected printers that support business-critical workflows or are exposed beyond trusted internal networks. Remediation is operationally straightforward if firmware can be updated and access is restricted.

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 vulnerable condition is a network-triggered denial of service in Lenovo LJ4010DN printer firmware prior to 1.01. No CWE, CPE, exploit details, or broader affected product list are provided in the source bundle.

Likely exposure

Exposure is likely limited to environments using Lenovo Printer LJ4010DN devices with firmware earlier than 1.01, especially if printer network services are reachable from untrusted, guest, or broadly segmented internal networks.

Exploitation context

The source bundle says a remote user can trigger the denial of service with a crafted packet. CISA KEV is false, and the provided sources do not claim active exploitation, public exploit availability, or ransomware use.

Researcher notes

Evidence is sparse. The bundle identifies one product, firmware before 1.01, and a remote denial-of-service outcome. It does not provide CWE mapping, CPEs, packet details, or proof of exploitation. Avoid expanding scope beyond Lenovo Printer LJ4010DN without vendor confirmation.

Mitigation direction

  • Upgrade Lenovo Printer LJ4010DN firmware to version 1.01 or later where applicable.
  • Review Lenovo’s advisory for vendor-specific remediation guidance.
  • Restrict printer access to trusted network segments only.
  • Block untrusted inbound access to printer management and print services.
  • Prepare reboot procedures for affected printers during remediation.

Validation and detection

  • Inventory Lenovo Printer LJ4010DN devices across office and branch networks.
  • Check each device firmware version against the 1.01 fixed threshold.
  • Confirm affected printers are not reachable from guest or untrusted networks.
  • Review print service incidents requiring reboot for possible historical impact.
  • Track remediation status in vulnerability management records.
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-2020-8330 mapping review

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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-2020-8330Attack 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.