CVE-2021-38412

Name: CVE-2021-38412
Creator: NVD / NIST
Published: 2021-09-17T20:15:07.647+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.26%

Last modified Jun 17, 2026

CVE-2021-38412 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 1.26% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.26%

65.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Digi	Portserver Ts 16 Firmware	82000684
Digi	Portserver Ts 16 Firmware	82000685

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-257-01Third Party Advisory, US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-257-01Third Party Advisory, US Government Resource

Timeline

Published: Sep 17, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-38412?

How severe is CVE-2021-38412?

CVE-2021-38412 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.26% probability of exploitation in the next 30 days.

How do I fix CVE-2021-38412?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-38412?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST