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CRITICAL

CVE-2021-28024

CVSS v3

9.8

CRITICAL

EPSS Score

1.4 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

Unauthorized system access in the login form in ServiceTonic Helpdesk software version < 9.0.35937 allows attacker to login without using a password.

Technical details

Published
2021-11-08

Frequently asked questions

What is CVE-2021-28024?

Unauthorized system access in the login form in ServiceTonic Helpdesk software version < 9.0.35937 allows attacker to login without using a password.

Is CVE-2021-28024 actively exploited?

Active exploitation of CVE-2021-28024 has not been confirmed. Its EPSS score was 1.4% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-28024?

CVE-2021-28024 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2021-28024 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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