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

Quick assessment

Affected
Belden Hirschmann HiOS Switch Platform
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.

Hirschmann HiOS 交换机平台设备中集成的 Web 服务器存在一个拒绝服务（DoS）漏洞，原因是未对 HTTP(S) 内容进行验证。未经身份验证的远程攻击者可以向某个特定端点发送经过特别构造的 HTTP(S) 请求，由于该请求被错误处理，将导致设备发生意外重启，从而引发临时的拒绝服务状态。该漏洞已在以下版本中修复：07.1.12、08.7.10、09.0.13、09.3.03、10.3.08 和 10.5.00。

CVSS 7.5 · High EPSS 0.42% · P36

Possible ATT&CK Techniques 1 AI

T1565 · Data Manipulation

Affected Version Matrix 12

VendorProduct Version RangeStatus
Belden Hirschmann HiOS Switch Platform 07.0.0≤ 07.1.11 affected
07.1.12 unaffected
08.0.0≤ 08.7.09 affected
08.7.10 unaffected
09.0.00≤ 09.0.12 affected
09.0.13 unaffected
09.3.00≤ 09.3.02 affected
09.3.03 unaffected
… +4 more rows
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I. Basic Information for CVE-2026-89025

Vulnerability Information
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Vulnerability Title
Hirschmann HiOS Switch Platform DoS via Malformed HTTP Request
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对异常条件的处理不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Belden Hirschmann HiOS Switch Platform 07.0.0 ~ 07.1.11 -

II. Public POCs for CVE-2026-89025

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III. Intelligence Information for CVE-2026-89025

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Vendor Advisories for CVE-2026-89025 (2)

IV. Related Vulnerabilities

Same product: Hirschmann HiOS Switch Platform
Same vendor: Belden
Same weakness: CWE-755

V. Comments for CVE-2026-89025

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