What’s Vulnerable › Vulnerabilities

CVE-2026-21709

• Severity: medium (CVSS 6.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-17 · updated 2026-10-26
• Weakness: CWE-77

Description

A vulnerability allowing a local attacker with administrator privileges to bypass Windows Driver Signature Enforcement.

Affected products

• Veeam Software Appliance: from 13 before 13.0.1 — fixed in 13.0.1
• Veeam Backup & Replication: from 12 before 12.3.2 — fixed in 12.3.2

How to fix

Upgrade to a fixed version: Veeam Software Appliance 13.0.1; Veeam Backup & Replication 12.3.2. Check the vendor advisory for mitigations.

References

• https://www.veeam.com/kb4830
• https://www.veeam.com/kb4831

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