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  4. CVE 2026 89025 hirschmann hios switch platform dos via malformed
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High · CVSS 8.7CVE-2026-89025

Hirschmann HiOS Switch Platform DoS via Malformed HTTP RequestCVE-2026-89025

Answer in brief

CVE-2026-89025 records a High severity (CVSS 8.7) vulnerability in Hirschmann HiOS Switch Platform DoS via Malformed HTTP Request. The current sources do not mark it as known exploited. The current feed maps Belden/Hirschmann HiOS Switch Platform (generic), Belden/Hirschmann HiOS Switch Platform (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 15, 2026Updated Oct 1, 2026Source checked Nov 1, 2026First seen by HOL Sep 15, 2026Material review Oct 1, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.7
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 8.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Belden/Hirschmann HiOS Switch Platform (generic), Belden/Hirschmann HiOS Switch Platform (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Belden/Hirschmann HiOS Switch Platformgeneric>=07.0.0 <=07.1.11 || >=08.0.0 <=08.7.09 || >=09.0.00 <=09.0.12 || >=09.3.00 <=09.3.02 || >=10.0.0 <=10.3.07 || 10.4.00 || 10.5.00Not reported
Belden/Hirschmann HiOS Switch Platformgeneric07.0.0 || 08.0.0 || 09.0.00 || 09.3.00 || 10.0.0 || 10.4.00 || 10.5.00Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Belden/Hirschmann HiOS Switch Platform, Belden/Hirschmann HiOS Switch Platform.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Sep 15, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 1, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 15, 2026

Sources and claim methodology

  • Source referenceassets.belden.com
  • Source referencevulncheck.com
Upstream source description

Hirschmann HiOS Switch Platform devices contain a denial-of-service vulnerability in the integrated web server due to missing validation of HTTP(S) content. A remote unauthenticated attacker can send a specially crafted HTTP(S) request to a specific endpoint that is processed incorrectly, causing the device to perform an unintended reboot and resulting in a temporary denial-of-service condition. This vulnerability has been addressed in versions 07.1.12, 08.7.10, 09.0.13, 09.3.03, 10.3.08, and 10.5.00.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-755
Source
CVE List V5
Source checked
Nov 1, 2026
References
2 linked sources
Open source record