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CVE-2026-85101

Quick assessment

Affected
Synology DiskStation Manager (DSM)
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.

在 Synology DiskStation Manager (DSM) 7.2.1-69057-13、7.2.2-72806-10、7.3.2-86009-5 和 7.4.1-90080-10 之前版本中，rsync 组件存在一个通过替代路径或通道绕过身份验证的漏洞。该漏洞允许远程攻击者读取特定文件、写入任意文件，并实施有限的拒绝服务攻击。

CVSS 8.6 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-85101

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An authentication bypass using an alternate path or channel vulnerability in the rsync in Synology DiskStation Manager (DSM) before 7.2.1-69057-13, 7.2.2-72806-10, 7.3.2-86009-5, and 7.4.1-90080-1 allows remote attackers to read specific files, write arbitrary files, and conduct limited denial-of-service attacks.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
使用候选路径或通道进行的认证绕过
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Synology DiskStation Manager (DSM) 7.4.1 ~ 7.4.1-90080-1 -

II. Public POCs for CVE-2026-85101

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III. Intelligence Information for CVE-2026-85101

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Other References for CVE-2026-85101 (1)

Same Patch Batch · Synology · 2026-11-12 · 27 CVEs total

CVE-2026-76954 9.8 CRITICAL Synology DSM 7.x Auth API SQL 注入漏洞
CVE-2026-13672 8.8 HIGH 群晖 DSM 7.3/7.4 SSOAuth 任意文件读写漏洞
CVE-2026-18792 8.8 HIGH Synology DSM 7.3.2 前共享 API 路径遍历漏洞
CVE-2026-74857 8.8 HIGH Synology DSM 7.3.2 前认证漏洞可读写文件
CVE-2026-18596 8.1 HIGH Synology DSM 7.4.1 前 OTP 认证绕过漏洞
CVE-2026-19048 8.1 HIGH Synology DSM 7.4 前版本 thumb 任意文件写入漏洞
CVE-2026-81584 8.1 HIGH Synology DSM 7.3/7.4 User API SQL 注入漏洞
CVE-2026-18633 7.5 HIGH Synology DSM 7.3/7.4 nfsd 未初始化指针导致拒绝服务
CVE-2026-75785 7.2 HIGH Synology DSM 7.3.2 前版本 VPN API 命令注入漏洞
CVE-2026-86343 6.8 MEDIUM Synology DSM 7.3/7.4 SNMP CRLF 注入漏洞
CVE-2026-15198 6.5 MEDIUM Synology DSM 7.3/7.4 Webdav API 认证绕过漏洞
CVE-2026-16550 6.5 MEDIUM Synology DSM 7.3/7.4 媒体解析器路径控制漏洞
CVE-2026-87801 6.5 MEDIUM Synology DSM 7.4.1 前 API 敏感信息插入漏洞
CVE-2026-15201 5.9 MEDIUM Synology DSM 证书验证漏洞允许文件读写
CVE-2026-13656 5.4 MEDIUM Synology DSM 7.3/7.4 音频播放器输入过滤漏洞
CVE-2026-19833 5.4 MEDIUM Synology DSM 7.3/7.4 ACL API 缺失授权漏洞
CVE-2026-81557 5.4 MEDIUM Synology DSM 7.3/7.4 DSMNotify 输入处理漏洞
CVE-2026-92379 5.4 MEDIUM Synology DSM 7.3.2/7.4.1 通知 API 文件读写漏洞
CVE-2026-124993 5.3 MEDIUM Synology DSM 7.3/7.4 安全顾问授权漏洞
CVE-2026-85098 5.3 MEDIUM Synology DSM 7.3.2/7.4.1 synoscgi 断言漏洞

Showing top 20 of 27 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: DiskStation Manager (DSM)
Same vendor: Synology
Same weakness: CWE-288