CVE-2021-32755

Certificate pinning is not enforced on the web socket connection

MEDIUM
4.3
CVSS Score
Published: July 13, 2021 at 08:55 PM UTC
Updated: June 17, 2026 at 03:53 AM UTC
2 products affected across 2 vendorsWireWire· also runs on 1 platform

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.3%

Description

Wire is a collaboration platform. wire-ios-transport handles authentication of requests, network failures, and retries for the iOS implementation of Wire. In the 3.82 version of the iOS application, a new web socket implementation was introduced for users running iOS 13 or higher. This new websocket implementation is not configured to enforce certificate pinning when available. Certificate pinning for the new websocket is enforced in version 3.84 or above.

Affected

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

v < 3.84
Affected range stops below 3.84, so it looks safe — our inference, not a vendor statement
apple-iphone-os (environment)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-295

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