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01 Record

CVE-2021-42138

A user of a machine protected by SafeNet Agent for Windows Logon may leverage weak entropy to access the encrypted credentials of any or all the users on that machine.

HighPUBLISHEDCNA: THA-PSIRT
CNA base score7.2 CVSS v3.xCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
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02 Description

A user of a machine protected by SafeNet Agent for Windows Logon may leverage weak entropy to access the encrypted credentials of any or all the users on that machine.

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.60% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 48.5% of scored records. A rank, not a probability.
NVD base score
6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD analysis status
Modified. 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
2021-12-20 20:19Z4 YR AGO
Last updated
2024-08-04 03:30Z2 YR AGO
Reserved
2021-10-11
Assigning CNA
THA-PSIRT
Record state
PUBLISHED
Severity
High (CVSS 7.2)
CNA CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
Weaknesses
Data version
5.1
Document digest
aaf7889bea226c4ad950637dd4a9753c0ba0ccd4d2994e38e0e3672e393e2ff7

05 Affected products

VendorProductVersionsPlatforms
Thales CPLSafenet Authentication ServiceWindows Logon Agent to < 3.4.4—

06 References