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ICS Inventory Component CVE-2026-90457

| EUVDEUVD-2026-76737 MEDIUM
Use of Password Hash With Insufficient Computational Effort (CWE-916)
2026-09-11 ics-cert@hq.dhs.gov GHSA-r5jf-jfmr-83g3
6.9
CVSS 4.0 · Vendor: hq
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Severity by source

Vendor (hq) PRIMARY
6.9 MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
5.5 MEDIUM

Reading the world-readable file still requires a local user account (PR:L); only confidentiality is impacted through offline hash recovery.

3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.0 AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (hq).

CVSS VectorVendor: hq

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

1
Analysis Generated
Sep 11, 2026 - 22:43 vuln.today

DescriptionCVE.org

The administrative password is hashed using a comparatively weak, fast algorithm for the credential store backing one authentication path, and the file containing that hash is written with permissions allowing it to be read by any local user. This is inconsistent with a separate, stronger hashing algorithm used for the same password on another authentication path. A party able to read this file, including a local user or a party with access to a configuration backup, could feasibly recover the underlying password through offline computation, compromising the administrative credential across every path that accepts it.

AnalysisAI

Weak password hashing combined with world-readable file permissions in an ICS inventory-management component allows any local OS user-or any party possessing a configuration backup-to offline-crack the administrative password and authenticate as administrator across every authentication path the product supports. The credential store backing one authentication path stores the admin password hash using a computationally cheap algorithm (CWE-916), inconsistently with a stronger algorithm applied on a second authentication path, and the hash file is written with permissions permitting any local user to read it. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Exploitation requires local OS access to the system running the ICS inventory-management component, or access to a configuration backup file exported from that system. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 vector (AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N) scores 6.9 Medium, accurately capturing a local-only attack surface with no complexity or privilege barrier beyond local OS access-consistent with the world-readable file permission. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Consult the vendor advisory published under ICSA-26-254-01 (CSAF source: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-254-01.json) for the confirmed patched version and vendor-specific instructions. … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-90457 vulnerability details – vuln.today

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