Critical Canon Printer Driver Vulnerability: Understanding CVE-2025-1268
Microsoft MORSE Team Discovers Critical Flaw in Canon Printer Drivers
Critical Canon Printer Driver Vulnerability: Understanding CVE-2025-1268
A critical security vulnerability has been discovered in Canon printer drivers, potentially exposing organizations and individuals to significant cybersecurity risks. This flaw, identified as CVE-2025-1268, affects multiple Canon printer drivers and could allow attackers to execute malicious code on affected systems. In this article, we’ll explore the details of this vulnerability, its impact, and the steps you should take to protect your systems.
Understanding CVE-2025-1268
CVE-2025-1268 is an out-of-bounds write vulnerability found in the EMF (Enhanced Metafile) Recode processing functionality of several Canon Generic Plus printer drivers for Windows operating systems. This critical security flaw carries a CVSS score of 9.4 out of 10, indicating its severe nature and potential for serious system compromise.
Affected Operating Systems
The vulnerability specifically impacts Windows systems. The EMF (Enhanced Metafile) format is a Windows-specific graphics format, and the vulnerable EMF Recode processing is part of the Canon printer drivers for Windows environments. Linux and macOS systems do not appear to be affected by this particular vulnerability.
Affected Drivers
The vulnerability specifically impacts the following printer drivers:
- Generic Plus PCL6 Printer Driver – Version 3.12 and earlier
- Generic Plus UFR II Printer Driver – Version 3.12 and earlier
- Generic Plus LIPS4 Printer Driver – Version 3.12 and earlier
- Generic Plus LIPSLX Printer Driver – Version 3.12 and earlier
- Generic Plus PS Printer Driver – Version 3.12 and earlier
These drivers are commonly used across a wide range of Canon printers, including production printers, office multifunction devices, small office multifunction devices, and laser printers.
Risk Assessment
The high CVSS score of 9.4 places this vulnerability in the “Critical” category, representing significant risk to affected systems. The technical details of the vulnerability have been categorized as follows:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: Low
This scoring indicates that the vulnerability is:
- Exploitable over a network
- Relatively simple to exploit
- Doesn’t require special privileges
- Can be triggered without user interaction
- Has severe impacts on system confidentiality and integrity
Exploitation Details
The vulnerability lies within the EMF Recode processing functionality of the affected printer drivers. When a print job is processed by a specially crafted malicious application, the out-of-bounds vulnerability can be triggered, potentially allowing attackers to:
- Write data beyond allocated memory buffers (out-of-bounds write)
- Execute arbitrary code with the privileges of the user running the printer driver
- Potentially gain complete control of affected systems
- Access sensitive information stored on the system
The most concerning aspect of this vulnerability is that it requires no user interaction and can be exploited remotely over a network, giving attackers a straightforward path to compromise systems running vulnerable Canon printer drivers.
Recommended Remediation Steps
To protect your systems from potential exploitation of CVE-2025-1268, consider implementing the following measures:
Immediate Actions
- Update Printer Drivers: Canon has released updated versions of the affected drivers that address this vulnerability. Download and install these updates immediately from your local Canon sales representative website.
- Isolate Vulnerable Systems: If immediate patching isn’t possible, consider isolating systems with vulnerable printer drivers from your network to prevent potential exploitation.
- Implement Network Segmentation: Restrict network access to printer systems to minimize the attack surface until all systems can be patched.
- Monitor for Suspicious Activities: Implement continuous monitoring for unusual network activities related to printer drivers that might indicate exploitation attempts.
Verification Steps
To determine if your systems are vulnerable:
- Check installed printer drivers through your system’s Device and Printers control panel
- Identify the version numbers of any installed Canon Generic Plus drivers
- Compare these versions against the vulnerable versions (3.12 and earlier)
- Prioritize updates for any vulnerable drivers found
The Broader Impact
This vulnerability highlights the often-overlooked security risks posed by peripheral devices and their drivers. Printers and their associated software components represent an expanding attack surface that requires the same level of security attention as your core systems and applications.
The discovery of CVE-2025-1268 by Microsoft’s Offensive Research and Security Engineering (MORSE) Team demonstrates the importance of comprehensive security assessments that include all components of your IT infrastructure, not just the most obvious ones.
How CinchOps Can Help
Protecting your business against vulnerabilities like CVE-2025-1268 requires a proactive, comprehensive security approach. At CinchOps, we specialize in helping organizations identify, prioritize, and remediate security vulnerabilities across their entire IT ecosystem.
Our services include:
- Comprehensive Vulnerability Management: We can help you identify vulnerable systems and prioritize remediation efforts based on risk.
- Security Patching Services: Our team can assist with the timely application of security updates to minimize your exposure to known vulnerabilities.
- Network Security Assessment: We evaluate your network infrastructure to identify and address potential security gaps, including proper segmentation to contain potential breaches.
- Continuous Monitoring: Our advanced monitoring solutions can help detect suspicious activities that might indicate exploitation attempts.
- Security Awareness Training: We provide training to help your team recognize and respond appropriately to security threats.
Discover more about our enterprise-grade and business protecting cybersecurity services on our Cybersecurity page
Don’t wait for a security incident to highlight vulnerabilities in your systems. Contact CinchOps today to learn how we can help strengthen your security posture and protect your business against critical vulnerabilities like CVE-2025-1268.
FREE CYBERSECURITY ASSESSMENT
