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

CVE-2023-27532 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 77.6%.

Is CVE-2023-27532 being actively exploited?

Yes, CVE-2023-27532 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active in-the-wild exploitation. Immediate patching is required.

Veeam CVE-2023-27532

HIGH

Missing Authentication for Critical Function (CWE-306)

2023-03-10 support@hackerone.com

Authentication Bypass Veeam Backup Replication Veeam

7.5

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-306 OWASP Top 10:2025 A07:2025 - Authentication Failures ASVS 5.0 V6 - Authentication Authentication required for critical functions MITRE ATT&CK 1 technique across 1 tactic: Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived	A remote attacker could access critical functionality without authentication by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

This Week Schedule remediation this week. Why: HIGH severity + EPSS > 10%.

Exploited in the wild (CISA KEV) No patch listed yet 77.6% exploitation probability (EPSS)

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AnalysisAI

Vulnerability in Veeam Backup & Replication component allows encrypted credentials stored in the configuration database to be obtained. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Require authentication for all sensitive operations, implement defense in depth.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Missing Authentication for Critical Function (CWE-306), which allows attackers to access critical functionality without authentication. 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. Affected products include: Veeam Veeam Backup \& Replication.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Added to CISA KEV

Jul 14, 2026 - 04:22 CISA

CVE Published

Mar 10, 2023 - 22:15 nvd

HIGH 7.5

DescriptionNVD

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.

Threat Intelligence Overview

EPSS Score

77.6%

Top 0% exploitable

Threat Intel

1 source

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

CISA KEV

EPSS CISA

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV Yes

Public POC No

EPSS 77.6%

Patch available No

Active threat Yes

Deciding rule

HIGH severity + EPSS > 10%

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Immediate

Exploitation· derived

Active

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

High

Priority Score

176

Low Medium High Critical

KEV: +50

EPSS: +78

CVSS: +38

PoC: 0

Weaponized: 0

Threat intel: +10

Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)NVD

cpe:2.3:a:veeam:veeam_backup_\&_replication:*:*:*:*:*:*:*:*

cpe:2.3:a:veeam:veeam_backup_\&_replication:11.0.1.1261:-:*:*:*:*:*:*

cpe:2.3:a:veeam:veeam_backup_\&_replication:11.0.1.1261:p20211123:*:*:*:*:*:*

cpe:2.3:a:veeam:veeam_backup_\&_replication:11.0.1.1261:p20211211:*:*:*:*:*:*

cpe:2.3:a:veeam:veeam_backup_\&_replication:11.0.1.1261:p20220302:*:*:*:*:*:*

cpe:2.3:a:veeam:veeam_backup_\&_replication:12.0.0.1420:-:*:*:*:*:*:*

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Same weakness CWE-306 – Missing Authentication for Critical Function

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Threat IntelligenceMISP

CISA Advisories

AA26-293A

Sources: CISA (public domain)

References

Advisories & patches

ADVISORY https://www.veeam.com/kb4424 REF https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-27532

Search Externally

GitHub PoC

Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC

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