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CVE-2026-91764— Improper Link Resolution Before File Access Vulnerability in Hitachi Dynamic Link Manager for Linux

Quick assessment

Affected
Hitachi Hitachi Dynamic Link Manager for Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

日立动态链接管理器（Hitachi Dynamic Link Manager）Linux 版存在“文件访问前链接解析不当”漏洞。 受影响版本为：6.1.1.-00 至 9.0.5-00（不含 9.0.5-00）之间的所有版本。

CVSS 8.1 · High

Possible ATT&CK Techniques 1 AI

T1565.003 · Runtime Data Manipulation
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I. Basic Information for CVE-2026-91764

Vulnerability Information
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Vulnerability Title
Improper Link Resolution Before File Access Vulnerability in Hitachi Dynamic Link Manager for Linux
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Link Resolution Before File Access Vulnerability in Hitachi Dynamic Link Manager for Linux. This issue affects Hitachi Dynamic Link Manager for Linux: from 6.1.1.-00 before 9.0.5-00.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Hitachi Hitachi Dynamic Link Manager for Linux 6.1.1.-00 ~ 9.0.5-00 -

II. Public POCs for CVE-2026-91764

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III. Intelligence Information for CVE-2026-91764

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Other References for CVE-2026-91764 (1)

Same Patch Batch · Hitachi · 2026-11-10 · 17 CVEs total

CVE-2026-115646 9.8 CRITICAL Partial String Comparison Vulnerability in HiRDB
CVE-2026-86579 8.2 HIGH Binary Planting Vulnerability in Hitachi Dynamic Link Manager for Windows
CVE-2026-91761 8.2 HIGH Insecure Temporary File Vulnerability in Hitachi Dynamic Link Manager for Linux
CVE-2026-91763 8.2 HIGH Insecure Temporary File Vulnerability in Hitachi Dynamic Link Manager for Linux
CVE-2026-91754 8.1 HIGH Stack-based Buffer Overflow Vulnerability in Hitachi Dynamic Link Manager for VMware
CVE-2026-91756 8.1 HIGH OS Command Injection Vulnerability in Hitachi Dynamic Link Manager for VMware
CVE-2026-91755 8.1 HIGH Integer Overflow Vulnerability in Hitachi Dynamic Link Manager for VMware
CVE-2026-91762 7.9 HIGH Insecure Temporary File Vulnerability in Hitachi Dynamic Link Manager for Linux
CVE-2026-91758 7.8 HIGH Out-of-bounds Read and Write Vulnerability in Hitachi Dynamic Link Manager for Linux
CVE-2026-91759 7.8 HIGH Out-of-Bounds Write Vulnerability in Hitachi Dynamic Link Manager for Linux
CVE-2026-92864 7.3 HIGH Insecure Temporary File Vulnerability in Hitachi Dynamic Link Manager for AIX (for markets
CVE-2026-112125 7.3 HIGH Incorrect Permission Assignment for Critical Resource Vulnerability in HA Monitor
CVE-2026-86578 7.3 HIGH Link Following Vulnerability in Hitachi Dynamic Link Manager for Windows
CVE-2026-91757 7.1 HIGH OS Command Injection Vulnerability in Hitachi Dynamic Link Manager for VMware
CVE-2026-92863 7.0 HIGH Integer Overflow Vulnerability in Hitachi Dynamic Link Manager for AIX (for the Japanese m
CVE-2026-91760 7.0 HIGH Heap-based Buffer Overflow Vulnerability in Hitachi Dynamic Link Manager for Linux

IV. Related Vulnerabilities

Same product: Hitachi Dynamic Link Manager for Linux
Same vendor: Hitachi
Same weakness: CWE-59