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CVE-2021-27648

Quick assessment

Affected
Synology Synology Antivirus Essential
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.

Synology Antivirus Essential是中国群晖（Synology）公司的一个应用软件。一个免费且易于使用的软件包，可保护您的Synology NAS和文件免受病毒侵害。 Synology Antivirus Essential 1.4.8-2801之前版本存在安全漏洞，对另一个领域中的资源的外部控制引用允许远程经过身份验证的用户通过未指定的载体获得特权。

CVSS 9.0 · Critical EPSS 2.84% · P86

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-27648

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Externally controlled reference to a resource in another sphere in quarantine functionality in Synology Antivirus Essential before 1.4.8-2801 allows remote authenticated users to obtain privilege via unspecified vectors.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
资源在另一范围的外部可控制索引
Source: CVE Program / CVE List V5
Vulnerability Title
Synology Antivirus Essential 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Synology Antivirus Essential是中国群晖（Synology）公司的一个应用软件。一个免费且易于使用的软件包，可保护您的Synology NAS和文件免受病毒侵害。 Synology Antivirus Essential 1.4.8-2801之前版本存在安全漏洞，对另一个领域中的资源的外部控制引用允许远程经过身份验证的用户通过未指定的载体获得特权。
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
Synology Synology Antivirus Essential unspecified ~ 1.4.8-2801 -

II. Public POCs for CVE-2021-27648

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III. Intelligence Information for CVE-2021-27648

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IV. Related Vulnerabilities

Same vendor: Synology
Same weakness: CWE-610

V. Comments for CVE-2021-27648

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