CVE-2021-44732
CVSS v3
9.8
CRITICAL
EPSS Score
2.6 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Mbed TLS before 3.0.1 has a double free in certain out-of-memory conditions, as demonstrated by an mbedtls_ssl_set_session() failure.
Technical details
- Published
- 2021-12-20
Frequently asked questions
What is CVE-2021-44732?
Mbed TLS before 3.0.1 has a double free in certain out-of-memory conditions, as demonstrated by an mbedtls_ssl_set_session() failure.
Is CVE-2021-44732 actively exploited?
Active exploitation of CVE-2021-44732 has not been confirmed. Its EPSS score was 2.6% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-44732?
CVE-2021-44732 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2021-44732 affecting your environment?
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