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CVE-2026-35049— wire-ios has Persistent Remote DoS via Integer Underflow

Quick assessment

Affected
wireapp wire-ios
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Wire-ios是一个处理移动应用程序中显示的所有数据的客户端层。 wire-ios 4.16.0之前版本存在数字错误漏洞，该漏洞源于缺少长度检查，可能导致在接收特制恶意Proteus外部消息时崩溃。

CVSS 6.5 · Medium EPSS 0.41% · P34

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
wireapp wire-ios < 4.16.0 affected
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I. Basic Information for CVE-2026-35049

Vulnerability Information
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Vulnerability Title
wire-ios has Persistent Remote DoS via Integer Underflow
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Wire-ios 数字错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wire-ios是一个处理移动应用程序中显示的所有数据的客户端层。 wire-ios 4.16.0之前版本存在数字错误漏洞，该漏洞源于缺少长度检查，可能导致在接收特制恶意Proteus外部消息时崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
wireapp wire-ios < 4.16.0 -

II. Public POCs for CVE-2026-35049

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III. Intelligence Information for CVE-2026-35049

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Vendor Advisories for CVE-2026-35049 (1)

IV. Related Vulnerabilities

Same product: wire-ios
Same vendor: wireapp
Same weakness: CWE-20

V. Comments for CVE-2026-35049

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