Hitachi Coding Software Suite: Path traversal allows arbitrary file access
Summary
Hitachi Coding Software Suite (HCSS) through version 3.3.0 contains a path traversal vulnerability (CWE-35). An attacker who can reach the software over the network may be able to view, create, modify or delete arbitrary files on the affected system. According to the CVSS 4.0 vector reported by third parties, no privileges or user interaction are required, but the vendor's advisory has not been independently verified. No exploitation has been confirmed.
Affected
- Hitachi Coding Software Suite V3.3.0 and earlier
Fixed in
- Upgrade to Hitachi Coding Software Suite V4.0.0 (per vendor advisory HIES-SEC-2026-002)
Workaround
- None listed by the vendor.
- Interim measure (not from the vendor): restrict network and file-share access to HCSS hosts until V4.0.0 is installed.
Exploitation
- VulDB (1 Oct 2026) reports no exploit available.
- CISA KEV: not listed according to a third-party index; recheck before relying on this.
- CISA SSVC assessment: exploitation none, automatable yes, technical impact total.
Our recommendation
- Check whether HCSS is installed in your environment and record the version.
- Upgrade any installation at V3.3.0 or earlier to V4.0.0.
- Do not expose HCSS hosts to the internet and restrict SMB or file-share access to them.
- Review related Hitachi CVEs in the same advisory (CVE-2026-82825, missing authentication; CVE-2026-82829, hidden accounts), which may be more directly exploitable.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Hitachi Coding Software Suite public statement (vendor advisory) www.hitachi-ies.com
- VulDB entry CVE-2026-82824 vuldb.com
- Hitachi security acknowledgments www.hitachi.com
- OpenCVE CVE-2026-82824 app.opencve.io
- Strix CVE-2026-82824 www.strix.ai
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 31 Oct 2026, 03:44.
Original description (NVD)
Hitachi Coding Software Suite contains a vulnerability related to Path Traversal vulnerability that allows an attacker to access, create, modify, or delete files. This issue affects Hitachi Coding Software Suite: through 3.3.0.
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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