CVE-2019-19104: ABB/Busch-Jaeger Telephone Gateway TG/S 3.2 Improper Authentication and Access Control

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-04-22 · updated 2026-06-17
Weakness: CWE-287

Description

The web server in ABB Telephone Gateway TG/S 3.2 and Busch-Jaeger 6186/11 Telefon-Gateway allows access to different endpoints of the application without authenticating by accessing a specific uniform resource locator (URL) , violating the access-control (ACL) rules. This issue allows obtaining sensitive information that may aid in further attacks and privilege escalation.

Affected products

ABB Tg/S3.2 Firmware: all versions
Busch-Jaeger 6186/11 Firmware: all versions

References

https://search.abb.com/library/Download.aspx?DocumentID=9AKK107680A3921&LanguageCode=en&DocumentPartId=&Action=Launch
https://search.abb.com/library/Download.aspx?DocumentID=9AKK107680A3921&LanguageCode=en&DocumentPartId=&Action=Launch

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