What’s Vulnerable › Vulnerabilities

CVE-2020-7548

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-12-01 · updated 2026-06-17
• Weakness: CWE-330

Description

A CWE-330 - Use of Insufficiently Random Values vulnerability exists in Smartlink, PowerTag, and Wiser Series Gateways (see security notification for version information) that could allow unauthorized users to login.

Affected products

• Schneider-Electric Acti9 Powertag Link Firmware: before 001.008.007 — fixed in 001.008.007
• Schneider-Electric Acti9 Powertag Link Hd Firmware: before 001.008.007 — fixed in 001.008.007
• Schneider-Electric Acti9 Smartlink El B Firmware: before 1.2.1 — fixed in 1.2.1
• Schneider-Electric Acti9 Smartlink Si B Firmware: before 002.004.002 — fixed in 002.004.002
• Schneider-Electric Acti9 Smartlink Si D Firmware: before 002.004.002 — fixed in 002.004.002
• Schneider-Electric Wiser Energy Firmware: before 1.5.0 — fixed in 1.5.0
• Schneider-Electric Wiser Link Firmware: before 1.5.0 — fixed in 1.5.0

How to fix

Upgrade to a fixed version: Schneider-Electric Acti9 Powertag Link Firmware 001.008.007; Schneider-Electric Acti9 Powertag Link Hd Firmware 001.008.007; Schneider-Electric Acti9 Smartlink El B Firmware 1.2.1; Schneider-Electric Acti9 Smartlink Si B Firmware 002.004.002; Schneider-Electric Acti9 Smartlink Si D Firmware 002.004.002; Schneider-Electric Wiser Energy Firmware 1.5.0; Schneider-Electric Wiser Link Firmware 1.5.0. Check the vendor advisory for mitigations.

References

• https://www.se.com/ww/en/download/document/SEVD-2020-287-03/
• https://www.se.com/ww/en/download/document/SEVD-2020-287-03/

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