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01 Record

CVE-2021-38121

Weak communication protocol identified in Advance Authentication client application

HighPUBLISHEDCNA: OpenText
CNA base score8.3 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L

02 Description

Weak communication protocol identified in Advance Authentication client application

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.18% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 7.4% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Analyzed. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2024-08-28 06:28Z2 YR AGO
Last updated
2024-08-28 13:29Z2 YR AGO
Reserved
2021-08-04
Assigning CNA
OpenText
Record state
PUBLISHED
Severity
High (CVSS 8.3)
CNA CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L
Weaknesses
  • CWE-326Inadequate Encryption StrengthClass
Data version
5.1
Document digest
84036cf0607af6406070ad622cc67a0057f910cee1c48d9bac5aec71ffdc2e4a

05 Affected products

VendorProductVersionsPlatforms
OpenTextNetIQ Advance Authentication6.3.5.1 to < <Windows, Linux, MacOS
microfocusnetiq_advanced_authentication0 to < 6.3.5.1—

06 References