What’s Vulnerable › Vulnerabilities

CVE-2021-38412: Digi PortServer TS 16 Improper Authentication

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-09-17 · updated 2026-06-17
• Weakness: CWE-287

Description

Properly formatted POST requests to multiple resources on the HTTP and HTTPS web servers of the Digi PortServer TS 16 Rack device do not require authentication or authentication tokens. This vulnerability could allow an attacker to enable the SNMP service and manipulate the community strings to achieve further control in.

Affected products

• Digi International PortServer TS 16: 82000684, 82000685

References

• https://us-cert.cisa.gov/ics/advisories/icsa-21-257-01
• https://us-cert.cisa.gov/ics/advisories/icsa-21-257-01

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