CVE-2026-44963 PUBLISHED

Assigner: hackerone
Reserved: 08.05.2026 Published: 09.06.2026 Updated: 10.06.2026

A vulnerability allowing remote code execution (RCE) on the Backup Server by an authenticated domain user.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CVSS Score: 9.4

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	Low
User Interaction	None

CVSS 4.0

Vendor	Veeam
Product	Backup and Replication
Versions	Default: unaffected affected from 0 to 12.3.2 (excl.)