Missing Authentication for Critical Function in ONE - CVE-2026-65641
Published: August 25, 2026
Vulnerability identifier: #VU145352
CSH Severity: High
CVSS v4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-65641
CWE-ID: CWE-306
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to coerce SMB authentication from the service account.
The vulnerability exists due to improper authentication handling in Veeam ONE when handling network requests. A remote attacker can send a specially crafted request to coerce SMB authentication from the service account.
Affected software
ONE
How to mitigate CVE-2026-65641
Install security update from vendor's website.
ONE - addressed in versions 13.0.2.7159, 13.1.0.7233