Hitachi Coding Software Suite: Hidden Functionality
CVE-2026-82829 is a critical-severity hidden functionality vulnerability in Hitachi Coding Software Suite from Hitachi Industrial Equipment Systems, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Hitachi Coding Software Suite versions: 3.3.0 and earlier. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.29% chance of exploitation within 30 days, which is low compared with other CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Check which version of Hitachi Coding Software Suite you run against the affected versions below, and install the vendor's latest release.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Hitachi Industrial Equipment Systems | Hitachi Coding Software Suite | 3.3.0 and earlier | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (hitachi.co.jp).
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 9.3 | Critical | CNA (hitachi.co.jp) |
| CVSS 3.1 | 9.8 | Critical | CNA (hitachi.co.jp) |
Official description
Hitachi Coding Software Suite contains a vulnerability related to Hidden Functionality vulnerability which allows an attacker to gain unauthorized access by exploiting hidden accounts or hard coded credentials. This issue affects Hitachi Coding Software Suite: through 3.3.0.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Hidden Functionality
The product contains functionality that is not documented, not part of the specification, and not accessible through an interface or command sequence that is obvious to the product's users or administrators.
How developers prevent this class of flaw
- Always verify the integrity of the product that is being installed.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: total).
References
Other references
Other vulnerabilities in Hitachi Coding Software Suite
- 8.8 High severity
- 9.8 Critical severity
- 7.5 High severity
- 9.8 Critical severity
- 9.8 Critical severity
Recent Hidden Functionality vulnerabilities
- 8.7 High severity
- 10.0 Critical severity
- 8.1 High severity
- 9.8 Critical severity
- 10.0 Critical severity
- 10.0 Critical severity
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