CVE-2026-63563: Sharp MFPs · Insecure Default
Affects Sharp MFPsSource CVE Database V5
Not known to be exploited · CVSS 6.5 Medium.
Data as of 1 Nov 2026, 22:58 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 37% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 3 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
Public exploit code: GitHub proofs of concept
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 1 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Sharp CorporationSharp MFPs | Affected
| Fixed in– |
| Toshiba Tec CorporationToshiba Tec MFPs | Affected
| Fixed in– |
AI-suggested
Until an official fix or configuration guidance is provided, users should verify and enable user authentication on affected devices manually to prevent unauthorized access.
Description
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.
References
- global.sharp/corporate/info/product-security/advisory-list/2026-004/ (opens in a new tab)
- corporate.jp.sharp/info/product-security/advisory-list/2026-004/ (opens in a new tab)
- toshibatec.com/information/20260731_01.html (opens in a new tab)
- toshibatec.co.jp/news/info/20260731-01.html (opens in a new tab)
- jvn.jp/en/vu/JVNVU98759887/ (opens in a new tab)