CVE-2026-35049

wire-ios has Persistent Remote DoS via Integer Underflow

State
Published
Severity
6.5 Medium
Published
Jun 2, 2026
Updated
Jun 3, 2026
Reserved
Mar 31, 2026

Read the record on cve.org

Description

wire-ios is an iOS client for the Wire secure messaging application. Prior to version 4.16.0, upon receiving a crafted malicious Proteus external message with an encrypted payload that is shorter than 16 bytes, the Wire iOS client crashes. The crash is triggered automatically after message receival with no user interaction. Since the malicious message persists in the conversation, the app enters a crash loop on relaunch and cannot be reopened until the local state is wiped. This issue has been fixed with version 4.16.0 which introduces the missing length check and is available via the App Store. No known workarounds are available.

Scores

CVSSScoreVectorSource
3.16.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HGitHub_M

Weaknesses

  • CWE-20 Improper Input Validation
  • CWE-191 Integer Underflow (Wrap or Wraparound)

Affected Products

ProductVersions
wire-ioswireapp
  • < 4.16.0Affected

References

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