Security Digest · Vulnerability record
CVE-2024-47850: OpenPrinting CUPS, cups-browsed vulnerability
CUPS cups-browsed before 2.5b1 will send an HTTP POST request to an arbitrary destination and port in response to a single IPP UDP packet requesting a printer to be added, a different vulnerability than CVE-2024-47176.
CVSS 7.5 High EPSS 0.9% · p58 Check exposure
Should you act?
Normal patch cycle
No exploitation signal; fix it in your next routine update if you are affected. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- Not in CISA KEV, but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.9%, percentile 58: FIRST’s model estimates a 0.9% chance of exploitation activity in the next 30 days, higher than 58% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Editorial verdict: Check exposure. CUPS cups-browsed RCE Chain: Real, but Needs a Print Job — Not the internet-ending bug the pre-disclosure hype suggested: code runs only when someone prints to the rogue printer, as the unprivileged lp user; but nothing should expose UDP 631 to the internet, and exposed hosts can be abused for DDoS.
What it is
CUPS cups-browsed before 2.5b1 will send an HTTP POST request to an arbitrary destination and port in response to a single IPP UDP packet requesting a printer to be added, a different vulnerability than CVE-2024-47176. (The request is meant to probe the new printer but can be used to create DDoS amplification attacks.)
Weakness type: CWE-400.
Product: OpenPrinting CUPS, cups-browsed · Assigned by: mitre · Published: 2024-10-04
Affected and fixed versions
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| n/a | n/a | see vendor advisory |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADP | 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: none (no login)
- User interaction: none
- Scope: unchanged
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc, automatable no, technical impact partial.
- FIRST EPSS (model of 2026-10-21): 0.85% probability of exploitation activity in the next 30 days; percentile 58.
Timeline
- — erroneo.us brief: CUPS cups-browsed RCE Chain: Real, but Needs a Print Job
- — CVE record published by mitre
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vulnerability records
- CVE.org record CVE-2024-47850 cve.org
- NVD entry CVE-2024-47850 nvd.nist.gov
Other references from the CVE record and advisory
- github.com github.com
- akamai.com akamai.com
- github.com github.com
- openwall.com openwall.com
- security.netapp.com security.netapp.com