Vulnerability Report

CVE-2026-63563

Title: MFPs shipped with user authentication disabled by default

Other

Proof Of Concept

PoC Available for CVE-2026-63563

CWE Category CWE-1188
Published Date Aug 03, 2026
Modified Date Aug 03, 2026
Exploit Status Available
Score 6.9 CVSS v4.0
Exploit Probability (EPSS)
0.43%

Vulnerability Summary

CVE-2026-63563: Sharp and Toshiba Tec MFPs (multifunction printers) for a certain market have been shipped with the user authentication feature disabled in the initial configuration. When used with the initial configuration, the address book editing and a range of features related to Document Filing can be accessed without user authentication. Products intended for the Japanese market are not affected.

Impacted Vendors

Analysis in Progress...

Reference Links

https://corporate.jp.sharp/info/product-security/advisory-list/2026-004/ https://global.sharp/corporate/info/product-security/advisory-list/2026-004/ https://jvn.jp/en/vu/JVNVU98759887/ https://www.toshibatec.co.jp/news/info/20260731-01.html https://www.toshibatec.com/information/20260731_01.html
CVSS v4.0
Source Entity [email protected]
Severity MEDIUM
6.9
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
N/A
RAW VECTOR CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
6.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-63563 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/redr0nin/CVE-2026-63563
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected Stack

No specific products linked.