8.3
HighCVSS 4.0 · from hackerone
CVE-2026-106077
A vulnerability allowing a user with the Veeam Backup for Microsoft 365 Administrator role to read arbitrary files on the backup server with LocalSystem privileges.
Backup for Microsoft 365 · Incorrect authorization · CWE-863AffectedBackup for Microsoft 365
FixNo fix listed yet.
PublishedOct 27, 16:16 · hackerone
ScoredOct 27 · 8.3 · hackerone
Exploit code publicNone known · checked 21:18 UTC
ExploitedNone known · CISA KEV checked 22:09 UTC
What we know
No known exploitation. CISA KEV, checked 22:09 UTC.
No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.
An attacker needs network access and an account. CVSS: network, high privileges.
A successful attack can read data. CVSS impact.
Description
A vulnerability allowing a user with the Veeam Backup for Microsoft 365 Administrator role to read arbitrary files on the backup server with LocalSystem privileges.
From hackerone
Affected and fixed versions
ProductAffectedFixed inBackup for Microsoft 3658.0 – 8.5.0.1014–
Exploit code
Exploit-DBnone knownMetasploitnone knownNucleinone known