CVE-2024-51977: Unauthenticated leak of sensitive information affecting multiple models from Brother Industries, Ltd., FUJIFILM Business Innovation, Ricoh, Toshiba Tec, and Konica Minolta, Inc.

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of 29 Oct 2026.

VulnCheck KEV lists it since 9 Jul 2025. It cites 1 public report, the first from 9 Jul 2025. VulnCheck's own honeypots also recorded exploitation attempts.

• app.crowdsec.net

How likely is exploitation in the next 30 days?

46.6%

EPSS score, percentile 98.8 of all scored records. A probability estimated by FIRST, not a report of exploitation.

CISA's SSVC assessment in the CVE record lists exploitation as poc.

How severe?

5.3 Medium

CVSS v3.1 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

Advisories and patches (7)

Which versions are affected?

Affected

• 1.65(ZH) and earlier
• 1.0 through 1.03(B)
• A
• A
• A
• 1.0 through 1.13(H)

and 14 more in the table below

Versions by product

Source: CISA KEV 2026.10.29, as of 29 Oct 2026; VulnCheck KEV, as of 30 Oct 2026; FIRST EPSS, as of 29 Oct 2026; CVE List, as of 30 Oct 2026. About the data.

Description

Unauthenticated leak of sensitive information affecting multiple models from Brother Industries, Ltd., FUJIFILM Business Innovation, Ricoh, Toshiba Tec, and Konica Minolta, Inc.

An unauthenticated attacker who can access either the HTTP service (TCP port 80), the HTTPS service (TCP port 443), or the IPP service (TCP port 631), can leak several pieces of sensitive information from a vulnerable device. The URI path /etc/mnt_info.csv can be accessed via a GET request and no authentication is required. The returned result is a comma separated value (CSV) table of information. The leaked information includes the device’s model, firmware version, IP address, and serial number.

Source: CVE List, as of 30 Oct 2026. About the data.

What to do

Advisories and patches

• support.brother.com (Vendor advisory)
• support.brother.com (Vendor advisory)
• support.brother.com (Vendor advisory)
• fujifilm.com (Vendor advisory)
• ricoh.com (Vendor advisory)
• toshibatec.com (Vendor advisory)
• konicaminolta.com (Vendor advisory)

This summary is based on the CVE record as of 30 Oct 2026. Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Source: CVE List, as of 30 Oct 2026. About the data.

Timeline