CVE-2020-11500
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
Zoom Client for Meetings through 4.6.9 uses the ECB mode of AES for video and audio encryption. Within a meeting, all participants use a single 128-bit key.
Technical details
- Published
- 2020-04-03
Frequently asked questions
What is CVE-2020-11500?
Zoom Client for Meetings through 4.6.9 uses the ECB mode of AES for video and audio encryption. Within a meeting, all participants use a single 128-bit key.
Is CVE-2020-11500 actively exploited?
Active exploitation of CVE-2020-11500 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-2020-11500?
CVE-2020-11500 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2020-11500 affecting your environment?
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