SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-7548

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.

CRITICAL 9.8EPSS 1.47%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
1.47% probability · 74th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-330
Affected
schneider-electric/acti9 smartlink si d firmware · schneider-electric/acti9 smartlink si b firmware · schneider-electric/acti9 powertag link firmware · schneider-electric/acti9 powertag link hd firmware · schneider-electric/acti9 smartlink el b firmware · schneider-electric/wiser link firmware · schneider-electric/wiser energy firmware
Source
cybersecurity@se.com
EPSS trend
0%3%5%26 October 2026: 1.47%26 October 202626 October 2026

EPSS 1.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.