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01 Record

CVE-2021-38412

Digi PortServer TS 16 Improper Authentication

CriticalPUBLISHEDCNA: icscert
CNA base score9.6 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L

02 Description

Digi PortServer TS 16 Improper Authentication

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.34% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 70.9% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-09-17 19:07Z5 YR AGO
Last updated
2024-09-17 00:06Z2 YR AGO
Reserved
2021-08-10
Assigning CNA
icscert
Record state
PUBLISHED
Severity
Critical (CVSS 9.6)
CNA CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L
Weaknesses
  • CWE-287Improper AuthenticationClass
  • CWE-306Missing Authentication for Critical FunctionBase
Data version
5.1
Document digest
f3933df8b8cca686d650ba49b9233eb490d5144ad9ac447f77413f6dacab6f3f

05 Affected products

VendorProductVersionsPlatforms
Digi InternationalPortServer TS 16Firmware to 82000684—

06 References

07 Remediation

The PortServer TS 16 product was discontinued in 2016. Per Digi’s security support, the device software and hardware support of 5 years has passed. Digi recommends upgrading to a new supported product. If this is not possible, extended support may be available by contacting Digi directly.