CVE-2021-27734

CRITICAL

Hirschmann HiOS <8.5.xx - Privilege Escalation

Title source: llm
STIX 2.1

Description

Hirschmann HiOS 07.1.01, 07.1.02, and 08.1.00 through 08.5.xx and HiSecOS 03.3.00 through 03.5.01 allow remote attackers to change the credentials of existing users.

References (1)

Core 1

Scores

CVSS v3 9.8
EPSS 0.0126
EPSS Percentile 66.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-287
Status published
Products (4)
belden/hirschmann_hios 07.1.01
belden/hirschmann_hios 07.1.02
belden/hirschmann_hios 08.1.00 - 08.6.00
belden/hisecos 03.3.00 - 03.5.01
Published May 17, 2021
Tracked Since Feb 18, 2026