CVSS v3
7.5
HIGH
EPSS Score
—
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
In modem, there is a possible improper input validation. This could lead to remote denial of service with no additional execution privileges needed
In modem, there is a possible improper input validation. This could lead to remote denial of service with no additional execution privileges needed
Active exploitation of CVE-2026-21552 has not been confirmed. The EPSS score is N/A%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2026-21552 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string 3.1.
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Ranked by exploit probability (EPSS).