CVE-2022-47191Network attack vector

Privilege escalation via unchecked firmware file permissions

Published Mar 31, 2023 · Updated Feb 11, 2025

Improper input validation in Generex UPS CS141 firmware before 2.06 allows remote authenticated users to escalate privileges via a firmware upload. The firmware-update handler accepts an update archive containing a file with attacker-modified permissions instead of rejecting it. Low-privilege access to the network web interface is required, and successful exploitation elevates privileges on the appliance.

CVSS severity4.3
Medium
EPSS probability1.06%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Generex UPS CS141 firmware before 2.06 allows remote authenticated users to escalate privileges via a firmware upload. The firmware-update handler accepts an update archive containing a file with attacker-modified permissions instead of rejecting it. Low-privilege access to the network web interface is required, and successful exploitation elevates privileges on the appliance.

The record

CVE
CVE-2022-47191
Published
Mar 31, 2023
Updated
Feb 11, 2025
Vendor
Generex Systems
Product
CS141 Series
Classifications
CWE-434, CWE-20, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 31, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 11, 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=2.06 <2.06

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Generex Systems · CS141 Seriesversion=2.06 <2.06

Published CVSS scores

4.3INCIBECVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
CWE-20Improper Input Validation
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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