CVE-2026-8065

An authentication bypass vulnerability in the firmware update endpoint of Hitachi Energy RTU500 end-of-life versions allows an unauthenticated attacker to upload arbitrary firmware through a crafted POST request. Successful exploitation could allow the attacker to modify device functionality or...

CVE-2026-8066

A directory traversal vulnerability in the file upload functionality of Hitachi Energy RTU500 end-of-life versions allows an unauthenticated attacker to write or overwrite arbitrary files on the device file system. Depending on the files affected, successful exploitation could result in...

CVE-2026-8066

A directory traversal vulnerability exists in the file upload functionality of the Hitachi Energy RTU500 . This flaw allows an unauthenticated attacker to write or overwrite arbitrary files on the device file system. Successful exploitation may lead to the unauthorized modification of device data...

CVE-2026-8066

A directory traversal vulnerability in the file upload functionality of Hitachi Energy RTU500 end-of-life versions allows an unauthenticated attacker to write or overwrite arbitrary files on the device file system. Depending on the files affected, successful exploitation could result in...

CVE-2026-8066

A directory traversal vulnerability in the file upload functionality of Hitachi Energy RTU500 end-of-life versions allows an unauthenticated attacker to write or overwrite arbitrary files on the device file system. Depending on the files affected, successful exploitation could result in...

EUVD-2026-88669

A directory traversal vulnerability in the file upload functionality of Hitachi Energy RTU500 end-of-life versions allows an unauthenticated attacker to write or overwrite arbitrary files on the device file system. Depending on the files affected, successful exploitation could result in...

CVE-2026-8065

An authentication bypass vulnerability in the firmware update endpoint of Hitachi Energy RTU500 end-of-life versions allows an unauthenticated attacker to upload arbitrary firmware through a crafted POST request. Successful exploitation could allow the attacker to modify device functionality or...

EUVD-2026-88666

An authentication bypass vulnerability in the firmware update endpoint of Hitachi Energy RTU500 end-of-life versions allows an unauthenticated attacker to upload arbitrary firmware through a crafted POST request. Successful exploitation could allow the attacker to modify device functionality or...

CVE-2026-8065

The Hitachi Energy RTU500 contains an authentication bypass vulnerability in its firmware update endpoint . An unauthenticated attacker can exploit this by sending a crafted POST request to upload arbitrary firmware . Successful exploitation allows the attacker to modify device functionality or c...

CVE-2026-8065

An authentication bypass vulnerability in the firmware update endpoint of Hitachi Energy RTU500 end-of-life versions allows an unauthenticated attacker to upload arbitrary firmware through a crafted POST request. Successful exploitation could allow the attacker to modify device functionality or...

Hitachi Energy e-mesh EMS

SUMMARY Hitachi Energy is aware of a buffer overflow vulnerability that affects e-mesh EMS product versions listed in this document. Successful exploitation of this vulnerability could lead to a buffer overflow condition, potentially resulting in application outages denial of service and...

Hitachi Energy RTU500 NULL Pointer Dereference (CVE-2026-24515)

In libexpat before 2.7.4, XMLExternalEntityParserCreate does not copy unknown encoding handler user data, causing Denial of Service impact. Product is only affected if IEC 61850 functionality is configured. This plugin only works with Tenable.ot. Please visit...

Hitachi Energy RTU500 NULL Pointer Dereference (CVE-2026-32776)

libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content, causing Denial of Service impact. Product is only affected if IEC 61850 functionality is configured. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-...

Hitachi Energy RTU500 NULL Pointer Dereference (CVE-2026-8479)

IEC 60870-5-104 used in bidirectional mode is vulnerable to a NULL pointer dereference; if a specially crafted sequence of messages is sent for a certain time, this causes Denial of Service impact. Product is only affected if IEC 60870-5-104 functionality in bidirectional mode BCI is configured...

Hitachi Energy RTU500 NULL Pointer Dereference (CVE-2026-32778)

libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier out-of-memory condition, causing Denial of Service impact. Product is only affected if IEC 61850 functionality is configured. This plugin only works with Tenable.ot. Please visit...

Hitachi Energy RTU500 Infinite Loop (CVE-2026-32777)

libexpat before 2.7.5 allows an infinite loop while parsing DTD content, causing Denial of Service impact. Product is only affected if IEC 61850 functionality is configured. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information...

Hitachi Energy RTU500 Integer Overflow or Wraparound (CVE-2026-25210)

In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation, primarily causing Denial of Service and potentially confidentiality and integrity impact to the product. Product is only...

Hitachi Energy RTU500 NULL Pointer Dereference (CVE-2025-69421)

Processing a malformed PKCS12 file can trigger a NULL pointer dereference in the PKCS12itemdecryptd2iex function. A NULL pointer dereference can trigger a crash which leads to Denial of Service for an application processing PKCS12 files. The PKCS12itemdecryptd2iex function does not check whether...

Hitachi Energy RTU500 安全漏洞

Hitachi Energy RTU500 is a series of industrial control components developed by Hitachi, Ltd. Hitachi Energy RTU500 contains a security vulnerability; this vulnerability stems from a null pointer dereferencing when using the IEC 60870-5-104 standard in bidirectional mode, which may lead to...

Hitachi Energy HiDraw 安全漏洞

Hitachi Energy HiDraw is a power transformer design software developed by Hitachi Corporation in Japan. Hitachi Energy HiDraw contains a security vulnerability caused by a heap buffer overflow. This vulnerability could allow malicious users with local access to cause memory corruption and potenti...