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Link Following Vulnerability in Hitachi Dynamic Link Manager for Windows

Hitachi Dynamic Link Manager for Windows versions 5.0.0-03 through 9.0.4-00 are affected. The fix is in 9.0.4-01.

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

7.3HighCNA
Exploited
No known exploitation
Fix
Fixed in 9.0.4-01
Who is exposed
Specific setups only

Do first: Check whether your setup matches what the bug needs. Hitachi Dynamic Link Manager for Windows versions 5.0.0-03 to 9.0.4-00 are affected.

Published
Last modified
Reference
Last checked
0.17% · 6th percentile
12/100 · provisional
Specific setups only
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

Hitachi Dynamic Link Manager for Windows contains a link-following vulnerability that a local attacker can use to cause limited loss of confidentiality and integrity and a high impact on availability. The attacker must already have high-privilege login access to the local machine, and no user action is needed.

Read the original description

Link Following Vulnerability in Hitachi Dynamic Link Manager for Windows.

This issue affects Hitachi Dynamic Link Manager for Windows: from 5.0.0-03 before 9.0.4-01.

Who should check

Teams running Hitachi Dynamic Link Manager for Windows versions 5.0.0-03 through 9.0.4-00.

Read the source excerpt

“Hitachi Dynamic Link Manager for Windows contain the following vulnerabilities”

hitachi.com

cve.now Index

12Pcve.now Index 12 of 100 · methodology v3 · provisional
  • Exploitation0/40No signal
  • Exposure5/25Specific setups only
  • Reach?/20Unknown. No tracked technology or package matched
  • Severity7.3/10CVSS 7.3
  • No patch0/5No signal

What would change the score

  • Would score about 62 if added to CISA KEV
  • Would score about 57 if CISA's SSVC rates exploitation active
  • Would score about 22 if CISA's SSVC rates it automatable

What to do

  • Check whether your setup matches what the bug needs.

    Hitachi Dynamic Link Manager for Windows versions 5.0.0-03 to 9.0.4-00 are affected.
  • Upgrade to a fixed version: 9.0.4-01.

Check your systems with an agent

Paste this into a coding or ops agent. It checks your systems read-only and reports a table per asset.

Check whether my systems are affected by CVE-2026-86578 (Link Following Vulnerability in Hitachi Dynamic Link Manager for Windows), 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-2026-86578 (entry last updated 2026-11-10):
Affected:
- Hitachi Hitachi Dynamic Link Manager for Windows: from 5.0.0-03, 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 Windows versions 5.0.0-03 to 9.0.4-00 are affected. (source: https://www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-160/index.html)
Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory.
Attacker needs: local access, high-privilege login, no user action.
CISA KEV: CVE-2026-86578 is not listed as of cve.now's last read.
This KEV status is for CVE-2026-86578 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-2026-160/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-2026-86578
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-2026-86578.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  4. Record last updated

Affected versions

  • Hitachi Hitachi Dynamic Link Manager for Windows

    From 5.0.0-03 · fixed in 9.0.4-01

Evidence 3

Vendor advisory · 1

Establishes: Affected and fixed versions.

  1. Advisory

CVE record · 2

Establishes: The identifier and description.

  1. Record
  2. Record

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

Questions about CVE-2026-86578

Is CVE-2026-86578 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: cve.now feed data

What does this mean?

The vulnerability is a link following flaw, meaning the software can be made to follow a file system link to a location it should not access. The available facts do not give further technical detail.Source: hitachi.com

Which versions are affected by CVE-2026-86578?

Hitachi Dynamic Link Manager for Windows: from 5.0.0-03 before 9.0.4-01.Source: cve.now feed data

Am I affected, and how do I check?

Versions from 5.0.0-03 up to and including 9.0.4-00 are listed as affected. To check a installed copy, compare its version against that range, using the version shown for the product in Windows Programs and Features or in the product itself.Source: hitachi.com

How do I fix CVE-2026-86578?

Upgrade to Hitachi Dynamic Link Manager for Windows 9.0.4-01 or later, which is the listed fixed version.Source: hitachi.com