Security readout for executives and security teams
Plain-English summary
Wire for iOS had a verification-state bug in versions 3.8.0 and earlier. In specific conversation membership situations, a conversation’s verified status could become unreliable. For organizations relying on Wire for sensitive communications, the priority is confirming iOS clients are upgraded to 3.8.1 or later.
Executive priority
Treat as high priority for teams using Wire as a trusted secure messaging channel. The business concern is not broad system compromise evidence, but loss of reliability in verification signals used to trust conversations.
Technical view
CVE-2021-32665 affects wire-ios <= 3.8.0 and is classified as CWE-345. The bug occurs when the self user is added to a new or existing conversation where all participants were previously verified. The vendor patched it in wire-ios 3.8.1; a workaround is to unverify and re-verify a device in the conversation.
Likely exposure
Exposure is limited to Wire iOS clients running version 3.8.0 or earlier. Risk is most relevant for users or organizations depending on Wire’s verified conversation/device trust indicators for sensitive communications.
Exploitation context
The source bundle does not cite active exploitation, and KEV status is false. The advisory describes conditions that can trigger incorrect verification behavior, but does not provide evidence of observed attacks.
Researcher notes
The available sources identify affected versions, trigger conditions, CWE-345 classification, CVSS 8.8, fixed version, and workaround. They do not establish active exploitation or provide broader platform impact beyond wire-ios.
Mitigation direction
- Upgrade Wire iOS clients to version 3.8.1 or later.
- If upgrade is delayed, use the vendor workaround: unverify and re-verify a device.
- Prioritize users handling sensitive or regulated communications.
- Review the Wire advisory for any newer vendor guidance.
Validation and detection
- Inventory Wire iOS client versions and flag any <= 3.8.0.
- Confirm upgraded devices report Wire iOS 3.8.1 or later.
- Review affected conversations for unexpected verification-state changes.
- Validate workaround completion where immediate upgrade was not possible.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-345: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-32665 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/wireapp/wire-ios/security/advisories/GHSA-mc65-7w99-c6qvCVE reference · x_refsource_CONFIRM
- https://github.com/wireapp/wire-ios-data-model/commit/bf9db85886b12a20c8374f55b7c4a610e8ae9220CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Insufficient Verification of Data Authenticity
Insufficient Verification of Data Authenticity represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.