CVE-2020-8329Network attack vector

Remote service interruption until reboot

Published May 28, 2020 · Updated Sep 16, 2024

A denial of service flaw in Lenovo Printer LJ4010DN firmware before 1.01 allows remote attackers to interrupt printing via a crafted packet. The affected firmware's vulnerable request-processing locus and parsing error are not disclosed in the Lenovo advisory or CVE record. A remote unauthenticated packet can display an error and leave the printer unable to function until reboot, causing availability loss without reported data disclosure or modification.

CVSS severity5.3
Medium
EPSS probability1.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

A denial of service flaw in Lenovo Printer LJ4010DN firmware before 1.01 allows remote attackers to interrupt printing via a crafted packet. The affected firmware's vulnerable request-processing locus and parsing error are not disclosed in the Lenovo advisory or CVE record. A remote unauthenticated packet can display an error and leave the printer unable to function until reboot, causing availability loss without reported data disclosure or modification.

The record

CVE
CVE-2020-8329
Published
May 28, 2020
Updated
Sep 16, 2024
Vendor
Lenovo
Product
Lenovo Printer LJ4010DN
Classifications
T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 28, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <1.01

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Lenovo · Lenovo Printer LJ4010DNversion=unspecified <1.01

Published CVSS scores

7.8NVDAV:N/AC:L/Au:N/C:N/I:N/A:C
5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo