CVE-2023-27532 (GCVE-0-2023-27532)

Vulnerability from cvelistv5 – Published: 2023-03-10 00:00 – Updated: 2025-10-21 23:15
VLAI CISA Previdian
Summary
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: active Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-28 21:19 UTC
CWE
  • CWE-306 - Missing Authentication for Critical Function (CWE-306)
Assigner
References
Impacted products
Vendor Product Version
n/a Veeam Backup & Replication Affected: Fixed Versions: v12 (build 12.0.0.1420 P20230223)
Affected: 11a (build 11.0.1.1261 P20230227)
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 530e243a-ab48-4ca6-8cd8-484f88facb29

Vulnerability ID: CVE-2023-27532

Status: Confirmed

Status Updated: 2023-08-22 02:00 CEST

Exploited: Yes

Timestamps
First Seen: 2023-08-22
Asserted: 2023-08-22
Scope
Notes: Veeam Backup & Replication Cloud Connect Missing Authentication for Critical Function Vulnerability | Affected: Veeam / Backup & Replication | 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. | Due date: 2023-09-12 | Known ransomware campaign use (KEV): Known | Notes (KEV): https://www.veeam.com/kb4424; https://nvd.nist.gov/vuln/detail/CVE-2023-27532
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-306
Feed CISA Known Exploited Vulnerabilities Catalog
Product Backup & Replication
Due Date 2023-09-12
Date Added 2023-08-22
Vendorproject Veeam
Vulnerabilityname Veeam Backup & Replication Cloud Connect Missing Authentication for Critical Function Vulnerability
Knownransomwarecampaignuse Known
References
Created: 2026-10-02 08:09 CEST | Updated: 2026-10-02 08:09 CEST
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 99eed08c-bc0b-401f-9233-8cd9db1eb909

Vulnerability ID: CVE-2023-27532

Status: Confirmed

Status Updated: 2023-08-22 02:00 CEST

Exploited: Yes

Timestamps
First Seen: 2023-08-22
Asserted: 2023-08-22
Scope
Notes: Vulnerability in Veeam Backup & Replication component allows encrypted credentials stored in the configuration database to be obtained. This... | Affected: Veeam / Veeam Backup & Replication | CVSS: 7.5 (HIGH) | EPSS: 0.81326 | Used in malware: yes | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Confirmed Compromise

Confidence: 70%

Source: previdian

Details
Feed Previdian (previdian.com)
Title Vulnerability in Veeam Backup & Replication component allows encrypted credentials stored in the configuration database to be obtained. This...
Cve Id CVE-2023-27532
Vendor Veeam
Ghsa Id None
Product Veeam Backup & Replication
Added Date 2023-08-22T00:00:00.000Z
Cvss Score 7.5
Epss Score 0.81326
Previous Ids
Cvss Severity HIGH
Virtual Patch False
Cvss Estimated False
Epss Percentile 0.99628
Used In Malware yes
Vulnerability Id CVE-2023-27532
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-10-02 09:11 CEST | Updated: 2026-10-02 09:11 CEST
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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