CVE-2024-47176Public exploitNetwork attack vector

Unauthenticated malicious-printer injection via trusted UDP packets

Published Sep 26, 2024 · Updated Nov 4, 2025

Improper input validation in OpenPrinting cups-browsed 2.0.1 and earlier allows remote attackers to add a malicious printer via UDP. The daemon binds UDP port 631 to all interfaces, accepts legacy browsing packets from any source, and fetches printer attributes from an attacker-controlled IPP URL. No authentication is required, but command execution as the lp user requires the related IPP-to-PPD injection flaws and a print job sent to the added queue.

CVSS severity7.5
High
EPSS probability50.60%
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

Improper input validation in OpenPrinting cups-browsed 2.0.1 and earlier allows remote attackers to add a malicious printer via UDP. The daemon binds UDP port 631 to all interfaces, accepts legacy browsing packets from any source, and fetches printer attributes from an attacker-controlled IPP URL. No authentication is required, but command execution as the lp user requires the related IPP-to-PPD injection flaws and a print job sent to the added queue.

The record

CVE
CVE-2024-47176
Published
Sep 26, 2024
Updated
Nov 4, 2025
Vendor
OpenPrinting
Product
cups-browsed
Classifications
CWE-1327, CWE-749, CWE-20, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 26, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record 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=<= 2.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenPrinting · cups-browsedversion=<= 2.0.1
OpenPrinting · CUPSversion=2.0.1

Published CVSS scores

7.5Red HatCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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 exploitPublished

Weakness, pattern, technique

CWE-1327Binding to an Unrestricted IP Address
CWE-749Exposed Dangerous Method or Function
CWE-20Improper Input Validation
T1190Exploit Public-Facing Application

Public exploit references

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