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CVE record · CVE-2023-27532

Missing authentication in Veeam Backup & Replication

CVSS 7.5 HighCriticalIn CISA KEV · ransomwareEPSS 0.81 · 99th percentile

Critical, because:

  • In CISA’s KEV catalogue since 22 Aug 2023: it is known to be exploited.
  • CVSS score 7.5 (7.0 or more) and EPSS 0.81 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

How we decide what’s critical

Published by the CVE Program (CNA: hackerone) at 10 Mar 2023, 00:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Not given Veeam Backup & Replication
  • affected Fixed Versions: v12 (build 12.0.0.1420 P20230223)
  • affected 11a (build 11.0.1.1261 P20230227)
Identifiers
CVE-2023-27532
CNA
hackerone
Weakness (CWE)
CWE-306
Tags
Published
10 Mar 2023
Updated
21 Oct 2025

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N ADP (CISA-ADP)
  • CISA KEV Listed since 22 Aug 2023: known to be exploited. CISA reports use in ransomware campaigns.
  • EPSS 0.81, the 99th percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 10 Mar 2023. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.