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CVE-2025-66270

Quick assessment

Affected
KDE KDE Connect protocol
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.

KDE Connect是KDE社区的一个连接手机和电脑的软件。 KDE Connect 2025-11-28之前版本存在安全漏洞，该漏洞源于未关联设备ID，可能影响多个平台的KDE Connect客户端。

CVSS 4.7 · Medium EPSS 0.20% · P9
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I. Basic Information for CVE-2025-66270

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The KDE Connect protocol 8 before 2025-11-28 does not correlate device IDs across two packets. This affects KDE Connect before 25.12 on desktop, KDE Connect before 0.5.4 on iOS, KDE Connect before 1.34.4 on Android, GSConnect before 68, and Valent before 1.0.0.alpha.49.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
KDE Connect 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
KDE Connect是KDE社区的一个连接手机和电脑的软件。 KDE Connect 2025-11-28之前版本存在安全漏洞，该漏洞源于未关联设备ID，可能影响多个平台的KDE Connect客户端。
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
KDE KDE Connect protocol 8 -

II. Public POCs for CVE-2025-66270

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III. Intelligence Information for CVE-2025-66270

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Patches & Fixes for CVE-2025-66270 (1)

Same Patch Batch · KDE · 2025-12-05 · 5 CVEs total

CVE-2025-32898 4.7 MEDIUM KDE Connect 安全特征问题漏洞
CVE-2025-32899 4.3 MEDIUM KDE Connect 安全漏洞
CVE-2025-32901 4.3 MEDIUM KDE Connect 安全漏洞
CVE-2025-32900 4.3 MEDIUM KDE Connect 安全漏洞

IV. Related Vulnerabilities

Same vendor: KDE
Same weakness: CWE-290

V. Comments for CVE-2025-66270

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