What is CVE-2026-63563?

CVE-2026-63563 is a medium-severity vulnerability in Sharp Corporation Mfps, classified under Initialization of a Resource with an Insecure Default. CVSS score: 6.5/10. Published 2026-08-03.

How severe is CVE-2026-63563?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2026-63563 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Sharp Corporation Mfps

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…

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Sharp Corporation Mfps — versions see the information provided by Sharp Corporation
Toshiba Tec Corporation Mfps — versions see the information provided by Toshiba Tec

Weakness classification (CWE)

CWE-1188 — Initialization of a Resource with an Insecure Default

Public proof-of-concept exploits

redr0nin/CVE-2026-63563

References

Frequently asked questions

What is CVE-2026-63563?: CVE-2026-63563 is a medium-severity vulnerability in Sharp Corporation Mfps, classified under Initialization of a Resource with an Insecure Default. CVSS score: 6.5/10. Published 2026-08-03.
How severe is CVE-2026-63563?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2026-63563 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.