---
id: CVE-2026-90457
title: >-
  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 …
summary: >-
  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 …
severity: medium
cvss: 6.9
cvssVector: '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'
cwe:
  - CWE-916
vendor: CISA
product: Malcolm
affected:
  - Malcolm < v26.06.0
published: '2026-09-11'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T19:40:31.053'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90457'
references:
  - url: >-
      https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-254-01.json
    label: ics-cert@hq.dhs.gov
tags:
  - nvd
  - cve.org
epss: 0.00128
epssPercentile: 0.02056
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-14T12:54:46.994373Z'
cvssSource: cna
ingestedAt: '2026-09-14T15:23:07.429Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.