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CVE-2021-27734

🗓️ 09 Jan 2026 11:28:59Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 18 Views

CVE-2021-27734 affects Hirschmann HiOS and HiSecOS; remote attackers can alter credentials.

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2021-27734
17 May 202115:15
–attackerkb
bdu_fstec
BDU FSTEC
Belden Hirschmann HiOS HiSecOS Unauthorized Access
16 Jun 202100:00
–bdu_fstec
cnnvd
CNNVD
Belden HiOS authorization issue vulnerability
17 May 202100:00
–cnnvd
cve
CVE
CVE-2021-27734
17 May 202114:28
–cve
cvelist
Cvelist
CVE-2021-27734
17 May 202114:28
–cvelist
euvd
EUVD
EUVD-2021-14476
7 Oct 202500:30
–euvd
nvd
NVD
CVE-2021-27734
17 May 202115:15
–nvd
osv_cve
osv_cve
CVE-2021-27734
17 May 202115:15
–osv_cve
prion
Prion
Design/Logic Flaw
17 May 202115:15
–prion
ptsecurity
Positive Technologies
PT-2021-3278
11 May 202100:00
–ptsecurity
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27 Mar 2026 14:24Current
8.5High risk
Vulners AI Score8.5
CVSS 27.5
CVSS 3.19.8
EPSS0.01264
18