Is CVE-2023-27532 in the CISA KEV catalog?

Yes. CVE-2023-27532 is on the CISA Known Exploited Vulnerabilities list, added 2023-08-22, and has known ransomware campaign use.

What is the CVSS severity of CVE-2023-27532?

CVE-2023-27532 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2023-27532?

CVE-2023-27532 has an EPSS score of 77.61% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-27532?

Upgrade veeam backup \& replication to 11.0.1.1261 or later.

CVE & CISA-KEV Catalog

CVE-2023-27532

HIGHCISA KEVEPSS 100th pctl

7.5

CVSS v3

NVD

Description

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.

CWE-306Missing Authentication for Critical Function

How to fix

Remediation Available

veeam backup \& replicationNVD

Affected:< 11.0.1.1261Fixed in:11.0.1.1261CVE-2023-27532derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

77.61%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

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

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.

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

Remediation due: 2023-09-12

Associated with ransomware campaigns

References

Vendor Advisory1

veeam.com

Government Resource1

cisa.gov

Related Vulnerabilities

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-10271	High	7.5	100%	KEV + Ransom	-
CVE-2025-3248	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-42793	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2022-1388	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2021-37415	Critical	9.8	100%	KEV	-
CVE-2023-21839	High	7.5	100%	KEV	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.