CVE-2025-48469Public exploit

Administrator access via unauthenticated firmware replacement

Published Jun 24, 2025 · Updated Jun 25, 2025

Missing authentication in Advantech WISE firmware A2.01 B00 allows remote attackers to install modified firmware over the local network. A GET request to /__dnldpage sets allow_unauth_firmware_upgrade, causing /file_xfer to accept a firmware POST without successful basic authentication; only a reproducible checksum, not a cryptographic signature, guards the image. Network access to an affected WISE-4000LAN device with Security Mode disabled is sufficient to replace its firmware and obtain persistent administrator access.

CVSS severity9.6
Critical
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Advantech WISE firmware A2.01 B00 allows remote attackers to install modified firmware over the local network. A GET request to /__dnldpage sets allow_unauth_firmware_upgrade, causing /file_xfer to accept a firmware POST without successful basic authentication; only a reproducible checksum, not a cryptographic signature, guards the image. Network access to an affected WISE-4000LAN device with Security Mode disabled is sufficient to replace its firmware and obtain persistent administrator access.

The record

CVE
CVE-2025-48469
Published
Jun 24, 2025
Updated
Jun 25, 2025
Vendor
Advantech
Product
WISE
Classifications
CWE-306, T1190
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=A2.01 B00

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Advantech · WISEversion=A2.01 B00

Published CVSS scores

9.6Cyber Security Agency of SingaporeCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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