Improper input validation in PowerLogic EGX100 and PowerLogic EGX300
Priority MEDIUM 41CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
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
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01279 70th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | PowerLogic EGX100 (Versions 3.0.0 and newer) and PowerLogic EGX300 (All Versions) | PowerLogic EGX100 (Versions 3.0.0 and newer) and PowerLogic EGX300 (All Versions) | — | No fix listed | CNA |
- PowerLogic EGX100 (Versions 3.0.0 and newer) and PowerLogic EGX300 (All Versions) Vendor— Affected PowerLogic EGX100 (Versions 3.0.0 and newer) and PowerLogic EGX300 (All Versions) Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:schneider-electric:powerlogic_egx100_firmware:*:*:*:*:*:*:*:* | 3.0.0 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:powerlogic_egx100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:powerlogic_egx300_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:powerlogic_egx300:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
- cpe:2.3:o:schneider-electric:powerlogic_egx100_firmware:*:*:*:*:*:*:*:* Versions 3.0.0 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:powerlogic_egx100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:powerlogic_egx300_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:powerlogic_egx300:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-22766
- 2026-10-03 Alias added: GHSA-473q-p3cq-866g
References
More Schneider Electric Powerlogic Egx100 Firmware vulnerabilities
- TI-2021-05649 Improper input validation in PowerLogic EGX100 and PowerLogic EGX300 CVSS 3.1CRITICAL 9.8
- TI-2021-05648 Improper input validation in PowerLogic EGX100 and PowerLogic EGX300 CVSS 3.1CRITICAL 9.8
- TI-2021-05646 Improper input validation in PowerLogic EGX100 and PowerLogic EGX300 CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-22766 · CVE Program
- CVE-2021-22766 · NVD
- FIRST EPSS
- GHSA-473q-p3cq-866g · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences