High severity7.5NVD Advisory· Published Apr 3, 2020· Updated Jun 17, 2026

CVE-2020-11500

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Zoom Video Communications, Inc./Meetings
cpe:2.3:a:zoom:meetings:*:*:*:*:*:*:*:*
Range: <=4.6.9
Zoom/Client for Meetingsdescription
Zoom Video Communications, Inc./Client for Meetingsllm-create
Range: <=4.6.9

Patches

Vulnerability mechanics

References

citizenlab.ca/2020/04/move-fast-roll-your-own-crypto-a-quick-look-at-the-confidentiality-of-zoom-meetings/nvdExploitThird Party Advisory
theintercept.com/2020/04/03/zooms-encryption-is-not-suited-for-secrets-and-has-surprising-links-to-china-researchers-discover/nvdPress/Media CoverageThird Party Advisory

News mentions

No linked articles in our index yet.

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