US Edition
Got a Brother Printer? It Could Have a Critical Security Flaw - How to Check and What to Do Next
- Rapid7 discovered eight security vulnerabilities affecting 689 Brother printer models and 59 devices from other vendors, publicly disclosed on June 25, 2025.
- The flaws include a critical unpatchable vulnerability, CVE-2024-51978, allowing attackers to generate default admin passwords using leaked device serial numbers.
- Brother released firmware updates fixing seven of the eight vulnerabilities but confirmed CVE-2024-51978 cannot be patched on existing devices, requiring manual password changes.
- A critical vulnerability, CVE-2024-51978, with a CVSS score of 9.8, affects 748 devices from five different vendors, highlighting the significant security risk involved.
- Users must change default passwords on affected printers immediately, and the issue highlights the importance of changing factory-set passwords on all new devices.
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Security researchers have discovered a series of eight vulnerabilities in almost 750 printer models sold on the market. One of these failures allows you to gain control over equipment and open the door to attackers.
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It's Brother's turn to undergo a series of security flaws involving almost 700 printer models! 8 flaws have been announced. This is the result of several months of work between Rapid7 and the Japanese manufacturer. Beyond Brother, dozens of Fujifilm, Ricoh, Toshiba and Konica models are impacted.
Some of the problems could already be fixed with a firmware update. However, this is not possible with one.
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