Unauthenticated administrative access via hard-coded credentials
Published Jun 5, 2026 · Updated Jun 5, 2026
Hard-coded credentials in Riello UPS NetMan 204 allow remote attackers to gain administrative access through its web interface. The cgi-bin/login.cgi handler accepts the embedded username and password 'eurek' as an administrator account, while lax parameter parsing also accepts both values in the username field. Network access to HTTP or HTTPS is sufficient to alter device configuration, enable Telnet or SSH, and reset local user credentials.
Summary
What happened
Hard-coded credentials in Riello UPS NetMan 204 allow remote attackers to gain administrative access through its web interface. The cgi-bin/login.cgi handler accepts the embedded username and password 'eurek' as an administrator account, while lax parameter parsing also accepts both values in the username field. Network access to HTTP or HTTPS is sufficient to alter device configuration, enable Telnet or SSH, and reset local user credentials.
The record
- CVE
- CVE-2025-71317
- Published
- Jun 5, 2026
- Updated
- Jun 5, 2026
- Vendor
- Riello UPS
- Product
- NetMan 204
- Classifications
- CWE-798, T1078
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 5, 2026CVE publishedPublication date reported by the CVE source.
- Jun 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?
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- Affected versionversion=0
What conditions does exploitation require?
What is affected?
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.
Public exploit references
- Exploit-DB 52183functional · demonstrated
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Technologies
Your stack
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Your stack
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