Microsoft CVE-2026-21672
HIGHCVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionNVD
A vulnerability allowing local privilege escalation on Windows-based Veeam Backup & Replication servers.
AnalysisAI
Local privilege escalation in Veeam Backup & Replication on Windows enables authenticated users to gain system-level access without user interaction. An attacker with local account credentials can exploit this vulnerability to achieve complete control over the backup infrastructure, including reading, modifying, or deleting backups. …
Sign in for full analysis, threat intelligence, and remediation guidance.
RemediationAI
Within 24 hours: Inventory all Windows-based Veeam Backup & Replication servers and restrict local administrative access to essential personnel only. Within 7 days: Implement enhanced monitoring and logging on affected Veeam servers, review access logs for suspicious privilege escalation attempts, and apply compensating controls listed below. …
Sign in for detailed remediation steps.
More from same product – last 7 days
{filename} endpoint. The flawed traversal guard only rejects forward slashes and '..' sequences, so absolute Windows pat
Remote code execution in Microsoft Azure Orbital Spatio allows unauthenticated network attackers to upload dangerous fil
Unsafe deserialization in Microsoft Planetary Computer Pro (Geocatalog) lets a remote unauthenticated attacker craft mal
Remote code execution in Microsoft Power Pages allows unauthenticated network attackers to inject and execute operating-
Privilege elevation in Microsoft Azure Resource Manager (ARM) allows remote unauthenticated attackers to bypass authenti
Share
External POC / Exploit Code
Leaving vuln.today