CVE-2020-7504
A CWE-20: Improper Input Validation vulnerability exists in Easergy T300 (Firmware version 1.5.2...
A CWE-20: Improper Input Validation vulnerability exists in Easergy T300 (Firmware version 1.5.2 and older) which could allow an attacker to disable the webserver service on the device when specially crafted network packets are sent.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
NVD Score used
A CWE-20: Improper Input Validation vulnerability exists in Easergy T300 (Firmware version 1.5.2 and older) which could allow an attacker to disable the webserver service on the device when specially crafted network packets are sent.
- Record
CVE-2020-7504- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
A CWE-20: Improper Input Validation vulnerability exists in Easergy T300 (Firmware version 1.5.2 and older) which could allow an attacker to disable the webserver service on the device when specially crafted network packets are sent.
- Record
CVE-2020-7504- Weakness
- CWE-20
- Updated
- 2026-11-02
EUVDEUVD-2020-28629 No score
A CWE-20: Improper Input Validation vulnerability exists in Easergy T300 (Firmware version 1.5.2 and older) which could allow an attacker to disable the webserver service on the device when specially crafted network packets are sent.
- Record
EUVD-2020-28629- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8393-8q55-5f3r No score
A CWE-20: Improper Input Validation vulnerability exists in Easergy T300 (Firmware version 1.5.2...
A CWE-20: Improper Input Validation vulnerability exists in Easergy T300 (Firmware version 1.5.2 and older) which could allow an attacker to disable the webserver service on the device when specially crafted network packets are sent.
- Record
GHSA-8393-8q55-5f3r- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-7504 is a medium vulnerability (CVSS 5.3) in Schneider-electric Easergy T300 Firmware, published June 16, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.29%, the 70th percentile. No source names a fixed version.