CVE-2021-21909
CVSS v3
8.1
HIGH
EPSS Score
1.0 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Specially-crafted command line arguments can lead to arbitrary file deletion in the del .cnt|.log file delete command. An attacker can provide malicious inputs to trigger this vulnerability
Technical details
- Published
- 2021-12-22
Frequently asked questions
What is CVE-2021-21909?
Specially-crafted command line arguments can lead to arbitrary file deletion in the del .cnt|.log file delete command. An attacker can provide malicious inputs to trigger this vulnerability
Is CVE-2021-21909 actively exploited?
Active exploitation of CVE-2021-21909 has not been confirmed. Its EPSS score was 1.0% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-21909?
CVE-2021-21909 has a CVSS v3 base score of 8.1 (HIGH severity).
Is CVE-2021-21909 affecting your environment?
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