CVE-2021-21301

Video feed was captured while user has disabled video

MEDIUM
4.3
CVSS Score
Published: February 11, 2021 at 06:05 PM UTC
Updated: June 17, 2026 at 03:35 AM UTC
2 products affected across 2 vendorsWireWire

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Severity
MEDIUM4.3
Exploit prediction
EPSS 1%

Description

Wire is an open-source collaboration platform. In Wire for iOS (iPhone and iPad) before version 3.75 there is a vulnerability where the video capture isn't stopped in a scenario where a user first has their camera enabled and then disables it. It's a privacy issue because video is streamed to the call when the user believes it is disabled. It impacts all users in video calls. This is fixed in version 3.75.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.75
Affected range stops below 3.75, so it looks safe — our inference, not a vendor statement
v < 3.75
Affected range stops below 3.75, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-200

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