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Cleartext TransmissionWeakness · CWE-319

CVE-2025-47698

HIGH · 8.6 CVSS v4.0 Published 2025-09-18
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
89/100
Remediation priority · High
No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
An adjacent attacker without authentication can exploit this vulnerability to retrieve a set of user-privileged credentials. These credentials are present during the firmware upgrade procedure.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

An adjacent unauthenticated attacker on the same network segment can intercept or retrieve user-privileged credentials that are exposed in plaintext or with insufficient protection during the firmware upgrade procedure. This exposure allows privilege escalation without authentication.

MitigationSecure the firmware upgrade process by encrypting credentials in transit and at rest, implementing authenticated secure channels for upgrade communications, and ensuring no sensitive credentials are logged or transmitted in cleartext during the upgrade procedure.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Adjacent
Complexity
Low
Privileges
None
Authentication
X
User interaction
P
Scope
X

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Capture network traffic during firmware upgrade
    Use a packet sniffer (such as tcpdump or Wireshark) to capture network packets while initiating and completing a firmware upgrade. Inspect the captured traffic for plaintext credentials, usernames, passwords, or authentication tokens being transmitted.
    Affected if Plaintext or weakly protected credentials appear in the captured network traffic during the upgrade process.
  2. Inspect firmware upgrade configuration files
    Locate and examine configuration files related to the firmware upgrade process. Look for entries containing credentials, authentication tokens, or API keys. Check whether these credential values appear in plaintext or are encrypted/obfuscated.
    Affected if Credentials are stored in plaintext or with insufficient encryption in upgrade-related configuration files.
  3. Review system and upgrade logs for credential exposure
    Examine all logs generated before, during, and after a firmware upgrade procedure. Search for entries that contain usernames, passwords, tokens, or other authentication data. Check both local system logs and any remote logging destinations.
    Affected if Sensitive credentials appear in plaintext within any logs generated during the firmware upgrade procedure.
  4. Verify upgrade channel uses secure transport
    Check the firmware upgrade mechanism configuration to determine if communications occur over encrypted protocols (such as TLS/SSL, HTTPS, or SSH). Verify that the upgrade server or source is authenticated and that the channel is not using plaintext protocols (HTTP, FTP, Telnet).
    Affected if The firmware upgrade process transmits data over unencrypted or unauthenticated channels.
  5. Inspect credential storage at rest
    Examine where credentials used for firmware upgrades are stored. Check if credential storage locations (files, databases, registries) use encryption at rest. Determine if backup or temporary files created during upgrade contain sensitive data in unprotected form.
    Affected if Credentials used for firmware upgrades are stored unencrypted at rest, or temporary/backup files contain plaintext credentials.

Your environment is affected if credentials are transmitted in plaintext, logged in cleartext, stored unencrypted, or sent over insecure channels during the firmware upgrade process.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Secure the firmware upgrade process by encrypting credentials in transit and at rest, implementing authenticated secure channels for upgrade communications, and ensuring no sensitive credentials are logged or transmitted in cleartext during the upgrade procedure.

Have this fixed Scoped from the published advisory
  • Consultation6.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA3.0 h
27.0 hours of engineering $4,800
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-47698 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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