TI-2019-04587 Aliases CVE-2019-6533 GHSA-gj7v-j8r4-326v

Missing authentication in ICS-CERT PR100088 Modbus gateway

MEDIUM 42CWE-306Published 2019-02-12 · Updated 2024-09-16

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-306.

Summary

Registers used to store Modbus values can be read and written from the web interface without authentication in the PR100088 Modbus gateway versions prior to Release R02 (or Software Version 1.1.13166).

Why it matters now

EPSS 0.01226 68th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
ICS-CERT	PR100088 Modbus gateway	All versions prior to Release R02 (or Software Version 1.1.13166)	—	No fix listed	CNA

PR100088 Modbus gateway VendorICS-CERT Affected All versions prior to Release R02 (or Software Version 1.1.13166) Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:kunbus:pr100088_modbus_gateway_firmware::::::::	before r02	Vulnerable	KUNBUS
cpe:2.3:h:kunbus:pr100088_modbus_gateway:-:::::::*	not specified by NVD	Running on	KUNBUS

cpe:2.3:o:kunbus:pr100088_modbus_gateway_firmware:*:*:*:*:*:*:*:* Versions before r02 Vulnerable ·KUNBUS
cpe:2.3:h:kunbus:pr100088_modbus_gateway:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·KUNBUS

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2019-6533
2026-10-03 Alias added: GHSA-gj7v-j8r4-326v

References

Advisory 1

https://ics-cert.us-cert.gov/advisories/ICSA-19-036-05

TI-2019-04581 Improper authentication in ICS-CERT PR100088 Modbus gateway CVSS 3.1CRITICAL 9.8
TI-2019-04585 An attacker could retrieve passwords from a HTTP GET request from the Kunbus PR100088… CVSS 3.1HIGH 8.1
TI-2019-04603 Cleartext storage of sensitive information in ICS-CERT PR100088 Modbus gateway CVSS 3.1HIGH 7.2
TI-2019-04583 Improper input validation in PR100088 Modbus gateway CVSS 3.1MEDIUM 4.9

Sources

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