SB2026092939 - Multiple vulnerabilities in Image Scanner Driver for Linux

Description

This security bulletin contains information about 2 vulnerabilities.

1) OS Command Injection (CVE-ID: CVE-2026-78229)

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVSSv4: 5.4 [CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation. A local user can pass specially crafted data to the application and execute arbitrary OS commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

2) Link following (CVE-ID: CVE-2026-81310)

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

CVSSv4: 5.2 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to an insecure link following issue. A local user can use a special method in advance to overwrite arbitrary files on the system.

Remediation

Install update from vendor's website.

References

• https://jvn.jp/en/vu/JVNVU96968110/index.html
• https://www.pfu.ricoh.com/global/products_security/vul2026000001e.html