CVE-2025-64394mediumCWE-1386

CVE-2025-64394: medium-severity vulnerability in Veeam Backup for Microsoft 365

Published

Follow this CVE+ Monitor Backup for Microsoft

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 4.3epss 0.1%
A vulnerability allowing a low-privileged local user to write arbitrary files with SYSTEM privileges during the installation of Veeam Backup for Microsoft 365, which can lead to privilege escalation or denial of service.
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Affected products
Veeam · Backup for Microsoft 365
Related CVEs — Veeam Backup for Microsoft 365

In the same product, most dangerous first.

CVE-2026-106076CRITICALCVE-2026-106076EPSS 0.4%CVE-2026-106078MEDIUMCVE-2026-106078EPSS 0.3%CVE-2026-106077HIGHCVE-2026-106077EPSS 0.2%