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Vulnerabilities

Vulnerability · CVE-2023-27532

Veeam Backup & Replication Cloud Connect Missing Authentication for Critical Function Vulnerability

Published Mar 10, 2023 · catalog updated Jun 16, 2026 · Veeam Backup & Replication

Patch now

CVE-2023-27532 is in the CISA known-exploited catalog, due Sep 12, 2023. Confirm Veeam Backup & Replication against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
High7.5
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
81.33%
Remediation
Remediation guidance
Affected products
cpe veeam/veeam backup & replication · vendor Veeam Backup & Replication

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. Initial-access exploit intelligence.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe veeam/veeam backup & replication11.0.1.1261
  • cpe veeam/veeam backup & replication12.0.0.1420
  • vendor Veeam Backup & Replicationversion unspecified

How to fix CVE-2023-27532

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2023-27532 is in the CISA known-exploited catalog, due Sep 12, 2023. Confirm Veeam Backup & Replication against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with veeam/veeam backup & replication 11.0.1.1261; veeam/veeam backup & replication 12.0.0.1420. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

What should an analyst verify?

CWE-306: Missing Authentication for Critical Function. EPSS 81.33%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 10, 2023 · Catalog

    Detected

    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.

  2. Aug 22, 2023 · CISA KEV

    Known exploited

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

  3. Sep 12, 2023 · CISA KEV

    Remediation due

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

  4. Jun 16, 2026 · Catalog

    Updated

    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.

Sources

  • CISA KEVConfirmed exploitationCVE-2023-27532

    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.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2023-27532

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-27532

    30-day exploitation probability 81.3%

    first.org
  • NIST NVDVulnerability recordCVE-2023-27532

    Vulnerability in Veeam Backup & Replication component allows encrypted credentials stored in the configuration database to be obtained. This may lead to gaining access to the backup infrastructure hosts.

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2023-27532

    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 da

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.