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CVE-2021-22766

HIGH
7.5
CVSS Score
Published: June 11, 2021 at 03:40 PM UTC
Updated: June 17, 2026 at 03:37 AM UTC
4 products affected across 1 vendorPowerlogic EGX100 FirmwarePowerlogic EGX300 FirmwarePowerLogic EGX300

Using PowerLogic EGX100 (Versions 3.0.0 and newer) and PowerLogic EGX300 (All Versions) by N/A?

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Severity
HIGH7.5
Exploit prediction
EPSS 1%
SSVC
No known exploit

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 via a specially crafted HTTP packet

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Powerlogic EGX100 Firmware· Schneider Electric
95%
v ≥ 3.0.0
schneider-electric-powerlogic-egx100 (same device)
Powerlogic EGX300 Firmware· Schneider Electric
95%
All versions
schneider-electric-powerlogic-egx300 (same device)
PowerLogic EGX100· Schneider Electric
60%
All versions
PowerLogic EGX300· Schneider Electric
60%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCVendor Advisory
Source: [email protected]
http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-03

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

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