High 7.5Published Sep 15, 2026

CVE-2026-89025Hirschmann HiOS Switch Platform DoS via Malformed HTTP Request

Updated under an hour ago (2026-10-19 06:30 UTC)

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It affects Belden Hirschmann HiOS Switch Platform. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Belden Hirschmann HiOS Switch Platform

Exploited in the last 30 days

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.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-755
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Awaiting Analysis
Record last updated: Oct 1, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Belden Hirschmann HiOS Switch Platform belden:hirschmann_hios_switch_platform (from the name)	from 07.0.0 through 07.1.11; 07.1.12 not affected; from 08.0.0 through 08.7.09; 08.7.10 not affected; from 09.0.00 through 09.0.12; 09.0.13 not affected; from 09.3.00 through 09.3.02; 09.3.03 not affected; and 4 more ranges	CNA record

References

https://assets.belden.com/asset/2ba884e3-c0c9-40f6-aa22-a9e852b20af4/PSIRT-6_HTTPS_Vulnerability_HiOS.pdfvendor-advisory, patch
https://www.vulncheck.com/advisories/hirschmann-hios-switch-platform-dos-via-malformed-http-requestthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.