Hitachi Coding Software Suite: Missing authentication for critical APIs
Summary
Hitachi Coding Software Suite (HCSS) up to and including V3.3.0 exposes critical APIs without proper authentication (CWE-306). An unauthenticated attacker with network access to the software can invoke these APIs to retrieve or alter sensitive information or perform unauthorized operations. Vendor and CNA rate the flaw as critical (CVSS v4.0 9.3); NVD analysis is still deferred.
Affected
- Hitachi Coding Software Suite V3.3.0 and earlier (0 to <= 3.3.0)
Fixed in
- Upgrade to Hitachi Coding Software Suite V4.0.0 or later (vendor countermeasure).
- Interim 3.x patch releases: Unknown.
Workaround
- Unknown. The vendor advisory states that no mitigations or workarounds are available.
- Interim measure (recommended by the research, not by the vendor): block network access to HCSS from untrusted networks and limit access to named engineering workstations until V4.0.0 is installed.
Exploitation
- VulDB reports no publicly available exploit or technical details.
- No reports of exploitation in the wild found; CISA KEV status not verified, treat as unconfirmed.
- CISA SSVC: exploitation none, automatable yes, technical impact total.
Our recommendation
- Inventory all HCSS installations and versions, including engineering laptops and build servers.
- Upgrade every instance at V3.3.0 or earlier to V4.0.0, following the vendor instructions.
- Until the upgrade, remove internet exposure and restrict network access to HCSS.
- Review HCSS logs for unexpected API access and check for changed projects or configurations.
- Also check the related vendor issues CVE-2026-82827, CVE-2026-82828 and CVE-2026-82829.
- Re-check the vendor advisory and CISA KEV periodically.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Hitachi public statement (vendor advisory) www.hitachi-ies.com
- VulDB CVE-2026-82825 vuldb.com
- VulDB vulnerability 412492 vuldb.com
- OpenCVE CVE-2026-82825 app.opencve.io
- Strix AI CVE-2026-82825 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 Missing Authentication for Critical Function. This allows an unauthenticated attacker to invoke a critical API, potentially leading to unauthorized retrieval or alteration of sensitive information, or unauthorized manipulation. 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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