Tag Archives: printer

Canon PIXMA/MAXIFY printers (MX492 etc.): Manual firmware update fixes restart loop

Posted on 2022-06-05 by guenni

[German]There are numerous reports from owners of a Canon all-in-one printer that the device is unusable for printing, scanning, faxing, because it constantly restarts and can no longer be operated. Various Canon PIXMA and MAXIFY models are affected. After my … Continue reading →

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Canon MX492 All-in-one devices are restarting repeatly with WiFi/Internet connection

Posted on 2022-06-02 by guenni

[German]Short information about a possible problem with Canon All-in-one printing devices. There are reports from users that Canon Pixma MX492 (and other Canon) printers suddenly cause issues when there is a Wi-Fi connection to a network with Internet access. Without … Continue reading →

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Hundreds of HP printer models with RCE vulnerability (March 2022)

Posted on 2022-03-23 by guenni

[German]HP warns in two security advisories about remote code execution (RCE) and information disclosure vulnerabilities in hundreds of its printer models. Attackers could exploit the vulnerability to inject malicious code into systems. However, the manufacturer has provided firmware updates to … Continue reading →

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Epson disables printers for customers due to payment issues through no fault of their own

Posted on 2022-03-23 by guenni

[Geman]Epson also has customers who has a Readyprint subscription. Then these customers get new ink cartridges when the existing cartridges run out of ink. Now there seems to be trouble because the payment service provider Epson uses can't actually process … Continue reading →

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More Lexmark device vulnerabilities (wrap-up Feb. 2022)

Posted on 2022-02-12 by guenni

[German]In late January 2022, a critical vulnerability CVE-2021-44738 in the PostScript interpreter of various Lexmark printers became public. The manufacturer warns about this vulnerability, which allows remote code execution, and provides a firmware update to close it. But there are … Continue reading →

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Critical vulnerability CVE-2021-44738 in Lexmark printers (Jan. 2022)

Posted on 2022-01-25 by guenni

[German]A critical vulnerability CVE-2021-44738 has been found in the PostScript interpreter of various Lexmark printers. The manufacturer warns about this vulnerability, which allows remote code execution, in a security advisory and provides a firmware update to close the vulnerability. Here … Continue reading →

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Canon ships toner without manufacturer's chips and provides usage guidance

Posted on 2022-01-11 by guenni

[German]Printer manufacturer Canon currently has to deliver toner cartridges without the chips to check whether they are originals from this vendor. The reason is the current chip shortage on the market, which has now also hit this manufacturer. In order … Continue reading →

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Printing Shellz: Vulnerabilities in HP multi-function printers (MFPs)

Posted on 2021-11-30 by guenni

[German]Today (Nov. 30,) is Computer Security Day, and this topic fits perfectly. There are several firmware vulnerabilities of certain HP LaserJet, HP LaserJet Managed, HP PageWide and HP PageWide Managed products. These are potentially vulnerable to a buffer overflow. This … Continue reading →

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Printjack: Security researchers warn against attacks on printers

Posted on 2021-11-27 by guenni

[German]Printers are widespread, even if the paperless office is the goal. Printers are networked, but rarely protected against attacks. People don't think the devices are really worth protecting. But in times of IoT and under the General Data Protection Regulation … Continue reading →

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Canon sued for disabling printer scan/fax function when ink is missing

Posted on 2021-10-18 by guenni

[German]A class action lawsuit has been filed in the USA against the device manufacturer Canon, which has come up with a very perfidious scam. If the multifunction devices run out of ink, operation is stopped. One user was so upset … Continue reading →

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