Operational Defect Database
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Veeam | kb4289
CVE-2022-26503
Last update date:
3/18/2022
Affected products:
Veeam Agent for Microsoft Windows
Affected releases:
2.2
Fixed releases:
No fixed releases provided.
Description:
Challenge
Vulnerability (CVE-2022-26503) in Veeam Agent for Microsoft Windows allows local privilege escalation. An attacker who successfully exploited this vulnerability could run arbitrary code with LOCAL SYSTEM privileges. Severity: High CVSS v3 score: 7.8
Cause
Veeam Agent for Microsoft Windows uses Microsoft .NET data serialization mechanisms. A local user may send malicious code to the network port opened by Veeam Agent for Microsoft Windows Service (TCP 9395 by default), which will not be deserialized properly.
Solution
This vulnerability is fixed in the following Veeam Agent for Microsoft Windows patched releases:
More Information
This vulnerability was reported by Nikita Petrov (Positive Technologies).
