What is CVE-2023-27532?

CVE-2023-27532 is a vulnerability in Veeam Backup & Replication, classified under Missing Authentication for Critical Function. Published 2023-03-10.

Is CVE-2023-27532 known to be exploited?

Yes. CVE-2023-27532 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-08-22), indicating it is being actively exploited. 17 public proof-of-concept repositories are indexed.

Auth bypass in Veeam Backup & Replication

CVE-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.

Vulnerability class: Broken Authentication

EPSS: 0.838 (99.3th percentile) — read the EPSS interpretation.

Affected products

N/a Veeam Backup & Replication — versions Fixed Versions: v12 (build 12.0.0.1420 P20230223), 11a (build 11.0.1.1261 P20230227)

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2023-08-22. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2023-09-12.

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

Known ransomware campaign use: yes.

Public proof-of-concept exploits

References

www.veeam.com/kb4424

Frequently asked questions

What is CVE-2023-27532?: CVE-2023-27532 is a vulnerability in Veeam Backup & Replication, classified under Missing Authentication for Critical Function. Published 2023-03-10.
Is CVE-2023-27532 known to be exploited?: Yes. CVE-2023-27532 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-08-22), indicating it is being actively exploited. 17 public proof-of-concept repositories are indexed.