Description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of VEEAM One Agent 9.5.4.4587. Authentication is not required to exploit this vulnerability. The specific flaw exists within the PerformHandshake method. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-10400.
References (3)
Core 3
Core References
Third Party Advisory, VDB Entry x_refsource_misc
https://www.zerodayinitiative.com/advisories/ZDI-20-545/
Vendor Advisory x_refsource_misc
https://www.veeam.com/kb3144
Exploit, Third Party Advisory x_refsource_misc
http://packetstormsecurity.com/files/157529/Veeam-ONE-Agent-.NET-Deserialization.html
Scores
CVSS v3
9.8
EPSS
0.4703
EPSS Percentile
98.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-502
Status
published
Products (1)
veeam/one
9.5.4.4587
Published
Apr 22, 2020
Tracked Since
Feb 18, 2026