CVE-2021-41396
CVSS v3
7.5
HIGH
EPSS Score
1.3 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Live555 through 1.08 does not handle socket connections properly. A huge number of incoming socket connections in a short time invokes the error-handling module, in which a heap-based buffer overflow happens. An attacker can leverage this to launch a DoS attack.
Technical details
- Published
- 2022-07-12
Frequently asked questions
What is CVE-2021-41396?
Live555 through 1.08 does not handle socket connections properly. A huge number of incoming socket connections in a short time invokes the error-handling module, in which a heap-based buffer overflow happens. An attacker can leverage this to launch a DoS attack.
Is CVE-2021-41396 actively exploited?
Active exploitation of CVE-2021-41396 has not been confirmed. Its EPSS score was 1.3% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-41396?
CVE-2021-41396 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2021-41396 affecting your environment?
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