CVE-2026-21709
Quick assessment
Affected
Veeam Backup and Replication
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.
Veeam Backup And Replication是美国Veeam公司的一个备份和复制软件。 Veeam Backup and Replication存在安全漏洞，该漏洞源于本地具有管理员权限的攻击者可绕过Windows驱动程序签名强制。
Possible ATT&CK Techniques 1 AI
T1562.001
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I. Basic Information for CVE-2026-21709
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability allowing a local attacker with administrator privileges to bypass Windows Driver Signature Enforcement.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Veeam Backup And Replication 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Veeam Backup And Replication是美国Veeam公司的一个备份和复制软件。 Veeam Backup and Replication存在安全漏洞，该漏洞源于本地具有管理员权限的攻击者可绕过Windows驱动程序签名强制。
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 |
|---|---|---|---|---|
| Veeam | Backup and Replication | 12 ~ 12.3.2 | - |
|
| Veeam | Software Appliance | 13 ~ 13.0.1 | - |
|
II. Public POCs for CVE-2026-21709
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-21709 (2)
IV. Related Vulnerabilities
Same weakness: CWE-77
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V. Comments for CVE-2026-21709
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