CVE-2024-8878Public exploitNetwork attack vector

Administrative takeover via predictable password recovery code

Published Sep 24, 2024 · Updated Nov 4, 2025

Weak password recovery in Riello UPS NetMan 204 4.05 and earlier allows remote attackers to take administrative control over HTTP. The recovery endpoint discloses netmanid without authentication, while a fixed NMP-prefixed MD5/SHA-1 derivation makes its seven-character code computable. Submitting that code resets the administrator credentials to admin:admin, permitting full UPS control, including shutdown.

CVSS severity10.0
Critical
EPSS probability1.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak password recovery in Riello UPS NetMan 204 4.05 and earlier allows remote attackers to take administrative control over HTTP. The recovery endpoint discloses netmanid without authentication, while a fixed NMP-prefixed MD5/SHA-1 derivation makes its seven-character code computable. Submitting that code resets the administrator credentials to admin:admin, permitting full UPS control, including shutdown.

The record

CVE
CVE-2024-8878
Published
Sep 24, 2024
Updated
Nov 4, 2025
Vendor
Riello UPS
Product
NetMan 204
Classifications
CWE-640, CAPEC-50, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 24, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 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=0 <=4.05

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Riello UPS · NetMan 204version=0 <=4.05

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0CyberDanubeCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-640Weak Password Recovery Mechanism for Forgotten Password
CAPEC-50Password Recovery Exploitation
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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