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Critical severity9.8NVD Advisory· Published May 17, 2021· Updated Jun 17, 2026

CVE-2021-27734

CVE-2021-27734

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.

Affected products

7
  • Hirschmann/HiSecOSdescription
  • Belden Hirschmann/Hirschmann Hios3 versions
    cpe:2.3:o:belden:hirschmann_hios:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:belden:hirschmann_hios:*:*:*:*:*:*:*:*range: >=08.1.00,<08.6.00
    • cpe:2.3:o:belden:hirschmann_hios:07.1.01:*:*:*:*:*:*:*
    • cpe:2.3:o:belden:hirschmann_hios:07.1.02:*:*:*:*:*:*:*
  • Belden Hirschmann/HiSecOS2 versions
    cpe:2.3:o:belden:hisecos:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:belden:hisecos:*:*:*:*:*:*:*:*range: >=03.3.00,<=03.5.01
    • (no CPE)range: 03.3.00 through 03.5.01
  • Belden Hirschmann/HiOSllm-fuzzy
    Range: 07.1.01, 07.1.02, and 08.1.00 through 08.5.xx

Patches

Vulnerability mechanics

References

1

News mentions

0

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