CVE-2023-27532 — Veeam Backup & Replication Cloud Connect Missing Authentication for Critical Function Vulnerability

CVE-2023-27532 (Veeam Backup & Replication) is in the CISA Known Exploited Vulnerabilities catalog since 2023-08-22. Used in ransomware. Veeam Backup & Replication Cloud Connect component contains a missing authentication for critical function… See the required fix, due date and advisories.

Exploitation status

CVE-2023-27532 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 2023-08-22. 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.

Advisory facts

Vendor or project
Veeam
Affected product
Backup & Replication
Added to CISA KEV
2023-08-22
US federal remediation due date
2023-09-12
Ransomware association
Known
EPSS score
—
Weakness (CWE)
CWE-306

Remediation: the required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Wording published by CISA for this catalog entry. It is the baseline action, not a decision about your environment: whether this exposure matters for you depends on where the affected component runs, what it is exposed to and who owns it.

From advisory to a decision you can defend

A catalog entry tells you a vulnerability is being exploited somewhere. It does not tell you whether it matters in your estate, who owns the fix, or what evidence an auditor will ask for later. That is the work VulnTrek does: it takes findings from the tools you already run, decides which exposure actually matters, routes it to an owner, keeps remediation human-approved and retains the lineage as evidence.

Sourced from public upstream advisories (CISA KEV, ENISA EUVD, vendor PSIRTs) mirrored daily. Informational only — not a remediation decision, not legal advice, and the absence of a record is not evidence of safety.