High severity · published Oct 27, 2026
CVE-2026-10756
TRO600 contains a vulnerability that allows an authenticated attacker to bypass network access restrictions and access services intended to be reachable only from localhost
New
7.7
CVSS
0.2%
EPSS
No
On KEV
Description
TRO600 contains a vulnerability that allows an authenticated attacker to bypass network access restrictions and access services intended to be reachable only from localhost. By leveraging port forwarding, an attacker can interact with locally bound ports and services, resulting in unauthorized access to sensitive functionality and confidential information, and causing availability impact.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TS
TRO600 Series Firmware · Hitachi Energy
9.0.0.0 through 9.2.1.6 · source: vendor
In the news
VulnerabilityHigh
Hitachi Energy TRO600 series products
View CSAF
Summary
Hitachi Energy is aware of multiple vulnerabilities that affect the TRO600 series product versions listed in this document. These vulnerabilities can be exploited for remote code execution (RCE) to carry out further attacks and disclosure of sensitive information. Please refer to the Recommended Immediate Actions section for information about the mitigation/remediation.
The following versions of Hitachi Energy TRO600 series products are affected:
TRO600 vers:TRO600/<=9.2.1.6, vers:TRO600/<=9.1.1.0, 9.2.2.1, 9.1.2.0 (CVE-2026-10756, CVE-2026-106087)
CVSS
Vendor
Equipment
v3 7.5
Hitachi Energy
TRO600
2 Vulnerabilities
Improper Restriction of Communication Channel to Intended Endpoints, Missing Authentication for Critical Function
Background
Critical Infrastructure Sectors: Energy
Countries/Areas Deployed: Worldwide
Company Headquarters Location: Switzerland
Vulnerabilities
Expand All +
CVE-2026-10756
TRO600 contains a vulnerability that allows an authenticated attacker to bypass network access restrictions and access services intended to be reachable only from localhost. By leveraging port forwarding, an attacker can interact with locally bound ports and services, resulting in unauthorized access to sensitive functionality and confidential information, and causing availability impact.
Read More
1 Affected Product
TRO600 version 9.2.1.6 ...
Oct 29, 2026·CISA Advisories
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-10756
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-10756
publisher.hitachienergy.com
https://publisher.hitachienergy.com/preview?DocumentID=8DBD000224&LanguageCode=en&DocumentPartId=&Action=Launch
More from TRO600 Series Firmware
8.7
CVE-2026-106087
TRO600 contains an arbitrary file read vulnerability
