CVE-2022-47893Network attack vector

Root code execution via unrestricted firmware upload

Published Oct 3, 2023 · Updated Sep 23, 2024

Unrestricted firmware upload in Riello UPS NetMan 204 all versions allows remote attackers to execute arbitrary code as root. The web server accepts a firmware file containing a webshell without restricting its dangerous type, exposing the uploaded code for execution. No authentication or user interaction is required, and successful exploitation grants root control of the appliance.

CVSS severity10.0
Critical
EPSS probability1.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted firmware upload in Riello UPS NetMan 204 all versions allows remote attackers to execute arbitrary code as root. The web server accepts a firmware file containing a webshell without restricting its dangerous type, exposing the uploaded code for execution. No authentication or user interaction is required, and successful exploitation grants root control of the appliance.

The record

CVE
CVE-2022-47893
Published
Oct 3, 2023
Updated
Sep 23, 2024
Vendor
Riello UPS
Product
NetMan 204
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 2024Record 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 <*
  2. Affected versionversion=0 <=all versions

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Riello UPS · NetMan 204version=0 <*; version=0 <=all versions

Published CVSS scores

9.8INCIBE-CERT vulnerability portalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0INCIBE-CERT CNACVSS:3.1/AV:N/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.

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

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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