August 22, 2023 · Applied Cybernetics Group
CVE-2023-27532 — Veeam Backup & Replication
known ransomware use
Veeam Backup & Replication Cloud Connect Missing Authentication for Critical Function Vulnerability
- Added to KEV
2023-08-22- Federal due date
2023-09-12- Vendor
- Veeam
- Product
- Backup & Replication
- EPSS
- 99.5th percentile (score 0.776, as of
2026-07-13) - NVD CVSS v3.1
- —
- Ransomware use
- Known
- ATT&CK
- T1059.003 , T1087 , T1087.001 , T1133 , T1486 , T1555 · signal rollup
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2023-27532
CISA short description
Veeam Backup & Replication Cloud Connect component contains a missing authentication for critical function vulnerability that allows an unauthenticated user operating within the backup infrastructure network perimeter to obtain encrypted credentials stored in the configuration database. This may lead to an attacker gaining access to the backup infrastructure hosts.
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.