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CVE-2026-124012 Dixell/Copeland XWEB EVO Hardcoded Administrator Daily Password Authentication Bypass

9.2 criticalEPSS 0.6%

Critical (9.2) in copeland xweb evo. EPSS 0.6% estimated probability of exploitation activity in the next 30 days.

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XWEB EVO 5.6.2 through 5.8.8 contains a hardcoded credential vulnerability where the Administrator web account is configured to use password_mode daily_password with no stored password, as the Users.authenticate function in lualib_users.lua synthesizes the Administrator configuration without validating any stored secret. Attackers who can derive the MAC-based daily password can authenticate as Administrator to obtain a full admin session on the device. This product line reached it's end of service date in March 2026.

Severity

CVSS 4.0

9.2 critical
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

8.1 high
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
0.6% estimated probability of exploitation activity in the next 30 days; 48th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
CWE
CWE-798 Use of Hard-coded Credentials
OWASP Top 10
A07:2025 Authentication Failures
Published
Modified
Assigned by
VulnCheck (CNA)
NVD analysis
Deferred: the NVD does not plan to analyze it
Record from
the NVD, synced

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Affected

  • copeland:xweb evo

Versions

From the CNA's record in the CVE List.

ProductAffected
Copeland XWEB EVOfrom 5.6.2 through 5.8.8

Attack patterns (CAPEC)

  • CAPEC-70 Try Common or Default Usernames and Passwords Likelihood: Medium · Severity: High
  • CAPEC-191 Read Sensitive Constants Within an Executable Severity: Low

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.

History

  1. The NVD deferred its analysis

Changes since this site first stored the record. The same for every record: /api/public/changes.

References

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