Apc Easy Ups Online Monitoring SoftwareApplication · Schneider Electric

CVE-2023-29411

CRITICAL · 9.8 CVSS v3.1 Published 2023-04-18
Fix available
A fix is available. Upgrade to after 2.5-gs-01-22320 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A CWE-306: Missing Authentication for Critical Function vulnerability exists that could allow changes to administrative credentials, leading to potential remote code execution without requiring prior authentication on the Java RMI interface.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-306

A sensitive function is reachable with no authentication at all, so anyone who finds the endpoint can use it. These are routinely discovered by automated scanning. The fix is to require and enforce authentication on every privileged path, with no exceptions left open.

General guidance for the missing authentication class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Apc Easy Ups Online Monitoring SoftwareApplication
Affected:<= 2.5-ga-01-22320
Easy Ups Online Monitoring SoftwareApplication
Affected:<= 2.5-gs-01-22320

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to a release after 2.5-gs-01-22320
Recommended fix High confidence

Obtain fixed version from SEVD-2023-101-04 (vendor security notice)

  1. Obtain the Schneider Electric security notice SEVD-2023-101-04 from https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2023-101-04&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2023-101-04.pdf
  2. Review the notice to identify the specific fixed version for your product (APC Easy UPS Online Monitoring Software or Easy UPS Online Monitoring Software)
  3. Apply the vendor-provided patch or upgrade to the fixed version specified in the security notice
  4. After patching, verify that authentication is now required for the Java RMI interface
  5. Validate that administrative credential changes now require proper authentication
Caveat Review vendor release notes for any configuration or compatibility changes required after applying the patch

Generated from the published advisory — verify against the referenced sources before acting.

We can identify the exact fixed release, upgrade, and verify it in staging — typical engagement from $2,300. Get the upgrade done

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2023-29411 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-29411 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data