CVE-2023-33274Public exploitNetwork attack vector

Unauthenticated UPS control via unchecked CGI requests

Published Jul 12, 2023 · Updated Nov 7, 2024

Authentication bypass in PowerShield SNMP Web Pro 1.1 allows remote attackers to control UPS systems through direct CGI requests. The web server accepts requests to CGI endpoints without verifying the web-interface authentication cookie or otherwise authorizing the request. The interface must be network-reachable and HTTP Digest authentication must be disabled; under that configuration, no web password prevents unauthorized UPS control.

CVSS severity9.8
Critical
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

Authentication bypass in PowerShield SNMP Web Pro 1.1 allows remote attackers to control UPS systems through direct CGI requests. The web server accepts requests to CGI endpoints without verifying the web-interface authentication cookie or otherwise authorizing the request. The interface must be network-reachable and HTTP Digest authentication must be disabled; under that configuration, no web password prevents unauthorized UPS control.

The record

CVE
CVE-2023-33274
Published
Jul 12, 2023
Updated
Nov 7, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 7, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.1pedromonteirobbCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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 exploitPublished

Weakness, pattern, technique

CWE-287Improper Authentication
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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