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TI-2020-08796 Aliases CVE-2020-10915GHSA-8h5c-9h59-x8hw

Deserialization of untrusted data in Veeam One Agent

Priority HIGH 84CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-502.

Summary

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 HandshakeResult 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-10401.

Why it matters now

EPSS 0.86734 99th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
VeeamOne Agent9.5.4.4587—No fix listedCNA
  • One Agent VendorVeeam Affected 9.5.4.4587 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:veeam:one:9.5.4.4587:*:*:*:*:*:*:*9.5.4.4587VulnerableVeeam
  • cpe:2.3:a:veeam:one:9.5.4.4587:*:*:*:*:*:*:* Versions 9.5.4.4587 Vulnerable ·Veeam

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-10915
  2. 2026-10-03 Alias added: GHSA-8h5c-9h59-x8hw

References

Advisory 2

Other 1

  • TI-2020-08795 Deserialization of untrusted data in Veeam One Agent CVSS 3.1CRITICAL 9.8
  • TI-2023-19924 Information disclosure in Veeam One CVSS 3.1CRITICAL 9.8
  • TI-2024-28037 A vulnerability that allows an attacker in possession of the Veeam ONE Agent service… CVSS 3.1HIGH 8.8
  • TI-2023-19926 Cross-site scripting in Veeam One CVSS 3.1MEDIUM 5.4
  • TI-2023-19925 Insufficiently protected credentials in Veeam One CVSS 3.1MEDIUM 4.3
  • TI-2024-28036 Improper access control in Veeam One CVSS 3.1HIGH 8.8
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences