HOMEVULNERABILITIESCVE-2021-32755
MEDIUM

CVE-2021-32755

CWE-295Published: July 13, 2021· Updated: Jun 17, 2026

4.3
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2021-32755 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected Vendors & Products

Apple1 product(s)
iphone os
wire1 product(s)
wire
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (2)

Quick Facts

CVE IDCVE-2021-32755
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-295
CISA KEVNo
Affected2 vendor(s)
PublishedJul 13, 2021

Related CVEs (CWE-295)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2021-32755 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.