Vulnerability · Published Mar 12, 2026 · Assigned by hackerone
CVE-2026-21668
High 8.8
In plain English
A high-severity security flaw in Backup and Replication from Veeam. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.5%top 54.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A vulnerability allowing an authenticated domain user to bypass restrictions and manipulate arbitrary files on a Backup Repository.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Veeam | Backup and Replication | 12.3.2 – before 12.3.2 |
Weakness: CWE-693 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H