CVE-2023-26069

Unauthenticated code execution via unvalidated configuration files

Published Apr 10, 2023 · Updated Feb 11, 2025

Improper input validation in the web API of Lexmark printer firmware allows remote attackers to execute arbitrary code on affected devices. The snmpUTIL binary processes configuration files without proper validation, permitting attacker-controlled data to drive code execution as the admin user. Exploitation requires network access but no authentication or user interaction; Lexmark assesses the attack as high complexity.

CVSS severity9.0
Critical
EPSS probability0.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in the web API of Lexmark printer firmware allows remote attackers to execute arbitrary code on affected devices. The snmpUTIL binary processes configuration files without proper validation, permitting attacker-controlled data to drive code execution as the admin user. Exploitation requires network access but no authentication or user interaction; Lexmark assesses the attack as high complexity.

The record

CVE
CVE-2023-26069
Published
Apr 10, 2023
Updated
Feb 11, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20, T1190
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 11, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.0LexmarkCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1190Exploit Public-Facing Application

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

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Your stack

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