Out-of-bounds write in Canon Inc. products - CVE-2025-9903
Published: September 30, 2025
Vulnerability identifier: #VU116180
CSH Severity: High
CVSS v4: 8.3 [CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-9903
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input in print processing. A remote attacker can trigger an out-of-bounds write and gain access to sensitive information or perform a denial of service (DoS) attack.
Affected software
Generic Plus PCL6 Printer Driver
Generic Plus UFR II Printer Driver
Generic Plus LIPS4 Printer Driver
Generic Plus LIPSLX Printer Driver
Generic Plus PS Printer Driver
Generic Plus UFR II Printer Driver
Generic Plus LIPS4 Printer Driver
Generic Plus LIPSLX Printer Driver
Generic Plus PS Printer Driver
How to mitigate CVE-2025-9903
Install updates from vendor's website.
Generic Plus PCL6 Printer Driver - update to 3.31
Generic Plus UFR II Printer Driver - update to 3.31
Generic Plus LIPS4 Printer Driver - update to 3.31
Generic Plus LIPSLX Printer Driver - update to 3.31
Generic Plus PS Printer Driver - update to 3.31
Generic Plus UFR II Printer Driver - update to 3.31
Generic Plus LIPS4 Printer Driver - update to 3.31
Generic Plus LIPSLX Printer Driver - update to 3.31
Generic Plus PS Printer Driver - update to 3.31
External References
- https://jvn.jp/en/vu/JVNVU93104961/index.html
- https://psirt.canon/advisory-information/cp2025-005/
- https://www.usa.canon.com/about-us/to-our-customers/cp2025-005-vulnerabilities-remediation-for-certain-printer-drivers-for-production-printers-office-small-office-multifunction-printers-laser-printers
- https://www.canon-europe.com/support/product-security/