CVE-2025-28200Public exploit

Network access via MAC-derived default password

Published May 9, 2025 · Updated Jul 5, 2026

Weak default credentials in Victure RX1800 EN_V1.0.0_r12_110933 allow physically proximate attackers to join its Wi-Fi network. The /sbin/Wireless boot routine reads four bytes from flash, lowercases the eight hexadecimal characters, and assigns that MAC-derived value as the WPA pre-shared key. The MAC address must be known or observable; successful access exposes the router's local network, and the same value also protects the gateway after initial setup.

CVSS severity9.8
Critical
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak default credentials in Victure RX1800 EN_V1.0.0_r12_110933 allow physically proximate attackers to join its Wi-Fi network. The /sbin/Wireless boot routine reads four bytes from flash, lowercases the eight hexadecimal characters, and assigns that MAC-derived value as the WPA pre-shared key. The MAC address must be known or observable; successful access exposes the router's local network, and the same value also protects the gateway after initial setup.

The record

CVE
CVE-2025-28200
Published
May 9, 2025
Updated
Jul 5, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-521, T1078
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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-521Weak Password Requirements
T1078Valid Accounts

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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