Skip to content
TrackCVE
  • Newest CVEsPage
  • Recently added to KEVPage
  • Rising exploitation (EPSS)Page
  • Weekly digestPage
  • StatisticsPage
  • WatchlistPage
  • API documentationPage
  • MCP serverPage
  • Data sourcesPage
  • ChangelogPage
  • AboutPage
  • How it's builtPage
Back

CVE-2025-8452

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

Medium4.3Public exploitEPSS 0.27%
Published
Updated
Reserved
Assigned by
AHA

Description

By using the "uscan" protocol provided by the eSCL specification, an attacker can discover the serial number of multi-function printers that implement the Brother-provided firmware. This serial number can, in turn, can be leveraged by the flaw described by CVE-2024-51978 to calculate the default administrator password. This flaw is similar to CVE-2024-51977, with the only difference being the protocol by which an attacker can use to learn the remote device's serial number. The eSCL/uscan vector is typically only exposed on the local network. Any discovery service that implements the eSCL specification can be used to exploit this vulnerability, and one such implementation is the runZero Explorer. Changing the default administrator password will render this vulnerability virtually worthless, since the calculated default administrator password would no longer be the correct password.

Public exploit

A reference of the record is tagged as an exploit or proof of concept: anyone can try it against an unpatched system.

Timeline

  1. ID reserved

    By AHA

  2. · 11 days later

    Published

  3. · 57 days later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2025-8452, by who scored it
Scored byCVSSScoreVector
AHACNA (assigner)3.1Medium4.3CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVDNVD · Deferred3.1Medium4.3CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS (exploitation in 30 days)
0.27% · top 81% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.

Weakness

Affected products

What to do

Workaround: Changing the default administrator password will render this vulnerability virtually worthless, since the calculated default administrator password (as described in the related vulnerability, CVE-2025-51978) would no longer be the correct password.

Exploitation: Any discovery service that implements the eSCL specification can be used to exploit this vulnerability. One such implementation is the runZero Explorer, described at  https://help.runzero.com/docs/installing-an-explorer/ .

References (5)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

CVE-2025-8452 badge
[![CVE-2025-8452](https://trackcve.app/badge/CVE-2025-8452.svg)](https://trackcve.app/cve/CVE-2025-8452)

Record last updated .