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Millions of Brother Printers Hit by Critical, Unpatchable Bug

ID: 9f0c4569-dcb2-5848-a9c3-ef7e60c1773d

STIX ID: report--9f0c4569-dcb2-5848-a9c3-ef7e60c1773d

Feed Name: Dark Reading

Threat Score
75/100

Date Published: 2025-06-25

Date Updated: 2026-04-21

Author: Alexander Culafi

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Rapid7 disclosed eight vulnerabilities across hundreds of printers, scanners, and label-makers (primarily Brother models), including a critical CVE-2024-51978 that enables generation of a device's default administrator password (CVSS 9.8) and cannot be fully remediated via firmware. Several flaws can be chained to achieve unauthenticated remote code execution or credential disclosure; Rapid7 and vendors released firmware for seven issues and advise changing default admin passwords and applying updates where available.

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