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

criticalknown exploitedpublic exploitCVE-2023-27532
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.

CSIRTS triage

vendor: Veeamproduct: Backup & Replication Cloud ConnectAuthentication bypass
What
A missing authentication vulnerability allows unauthenticated users to obtain encrypted credentials.
Who is affected
Users operating within the backup infrastructure network perimeter.
Urgency
Remediation is urgent as the vulnerability is actively exploited and critical.
Action
Apply the latest security patches for Veeam Backup & Replication.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2023-08-22
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2023-27532

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2023-27532coverage & exploitation statusNVD · CVE.org

Recent advisories for Veeam Backup &

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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