Hitachi Coding Software Suite: Incorrect authorization allows admin-level operations
Summary
Hitachi Coding Software Suite (HCSS) through version 3.3.0 contains an incorrect authorization flaw (CWE-863). An attacker with a low-privileged user account who can reach HCSS over the network can perform operations equivalent to administrator privileges. Hitachi has published version V4.0.0 as fixed, and no exploitation is known. The CVSS 4.0 base score is 8.7 (High).
Affected
- Hitachi Coding Software Suite (HCSS), all versions through 3.3.0
Fixed in
- Upgrade to Hitachi Coding Software Suite V4.0.0 as stated in the vendor advisory.
- The advisory excerpt was truncated; confirm that V4.0.0 is the only fixed release.
Workaround
- No vendor-published workaround identified.
- Interim measures are Unknown: they would be in the full advisory, which could not be fully reviewed.
Exploitation
- No known exploitation in the wild, no KEV listing and no public proof of concept found at the time of research.
- EPSS 0.00232 (low). CISA SSVC: exploitation none, not automatable, total technical impact.
Our recommendation
- Inventory all HCSS installations, versions and owners, including whether HCSS runs on IIS.
- Read the full vendor advisory and plan the upgrade to V4.0.0.
- Until patched, keep HCSS off the internet, restrict access to the printer/OT network and named admins, and change the default "Admin" credentials.
- Review accounts for unexpected administrator-level access and check logs for unusual admin actions.
- Monitor the vendor advisory and CISA KEV for changes.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Hitachi public statement (advisory PDF) www.hitachi-ies.com
- VulDB entry for CVE-2026-82828 vuldb.com
- Vulnrichment (Vulners) for CVE-2026-82828 vulners.com
- Strix CVE entry for CVE-2026-82828 www.strix.ai
- HCSS user manual V3.3.0 hitachicoding.com
- Hitachi smart printing software product page hitachi-industrial.eu
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 1 Nov 2026, 06:24.
Original description (NVD)
Hitachi Coding Software Suite contains an Incorrect Authorization vulnerability that allows an unprivileged user to perform administrator-level operations. 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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