What’s Vulnerable › Vulnerabilities

CVE-2021-42138

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-12-20 · updated 2026-06-17
• Weakness: CWE-331

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.

Affected products

• Thales CPL Safenet Authentication Service: before 3.4.4 — fixed in 3.4.4

How to fix

Upgrade to a fixed version: Thales CPL Safenet Authentication Service 3.4.4. Check the vendor advisory for mitigations.

References

• https://cpl.thalesgroup.com/support/security-updates
• https://supportportal.gemalto.com/csm?sys_kb_id=a52bd13adbff7010f0e322080596194a&id=kb_article_view&sysparm_rank=1&sysparm_tsqueryId=b3bdd932db33b010f0e3220805961955
• https://supportportal.gemalto.com/csm?sys_kb_id=e8397662dbb7fc10520c4705059619eb&id=kb_article_view&sysparm_rank=2&sysparm_tsqueryId=b3bdd932db33b010f0e3220805961955
• https://cpl.thalesgroup.com/support/security-updates
• https://supportportal.gemalto.com/csm?sys_kb_id=a52bd13adbff7010f0e322080596194a&id=kb_article_view&sysparm_rank=1&sysparm_tsqueryId=b3bdd932db33b010f0e3220805961955
• https://supportportal.gemalto.com/csm?sys_kb_id=e8397662dbb7fc10520c4705059619eb&id=kb_article_view&sysparm_rank=2&sysparm_tsqueryId=b3bdd932db33b010f0e3220805961955

Get alerted when CVE-2021-42138 or the next vulnerability affects your stack