TI-2025-03222 Aliases CVE-2025-3659 GHSA-r6rh-c775-h225

Improper authentication handling for Digi PortServer TS; Digi One SP, SP IA, IA; Digi One IAP

MEDIUM 42CWE-287Published 2025-05-12 · Updated 2025-05-12

Key facts

Attack vector: Adjacent network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

Improper authentication handling was identified in a set of HTTP POST requests affecting the following product families: * Digi PortServer TS - prior to and including 82000747_AA, build date 06/17/2022 * Digi One SP/Digi One SP IA/Digi One IA - prior to and including 82000774_Z, build date 10/19/2020 * Digi One IAP – prior to and including 82000770 Z, build date 10/19/2020 A specially crafted POST request to the device’s web interface may allow an unauthenticated attacker to modify configuration settings.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0032 25th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Digi International	Digi PortServer TS	up to 82000747_AA	—	No fix listed	CNA
Digi International	Digi One SP/Digi One SP IA/Digi One IA	up to 82000774_Z	—	No fix listed	CNA
Digi International	Digi One IAP	up to 82000770 Z	—	No fix listed	CNA

Digi PortServer TS VendorDigi International Affected up to 82000747_AA Fixed in — No fix listed CNA
Digi One SP/Digi One SP IA/Digi One IA VendorDigi International Affected up to 82000774_Z Fixed in — No fix listed CNA
Digi One IAP VendorDigi International Affected up to 82000770 Z Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-3659
2026-10-03 Alias added: GHSA-r6rh-c775-h225

References

Patch 3

Advisory 1

https://www.digi.com/getattachment/Resources/Security/Alerts/Improper-authentication-handling-for-Digi-PortServ/improper-authentication-handling.pdf

TI-2021-16016 Digi PortServer TS 16 Improper Authentication CVSS 3.1CRITICAL 9.8
TI-2026-65863 OS Command Injection in Digi Accelerated Linux (DAL OS) CVSS 4.0CRITICAL 9.4
TI-2023-03975 Digi RealPort Protocol Use of Password Hash Instead of Password for Authentication CVSS 3.1CRITICAL 9.0
TI-2006-04307 Integer overflow in AnywhereUSB/5 1.80.00 allows local users to cause a denial of service… CVSS 2.0HIGH 7.5
TI-2026-10612 Incorrect authorization in Digi International PortServer TS 1/2/4 CVSS 3.1MEDIUM 5.9
TI-2026-11021 Stored cross-site scripting (XSS) in Digi PortServer TS CVSS 4.0MEDIUM 4.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences