Is CVE-2023-3251 being actively exploited?

CVE-2023-3251 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2023-3251?

CVE-2023-3251 has a CVSS 3.1 base score of 4.1 (MEDIUM).

CVE-2023-3251

MEDIUM · CVSS 4.1EPSS 0.6%EU EUVD

A pass-back vulnerability exists where an authenticated, remote attacker with administrator privileges could uncover stored SMTP credentials within the Nessus application.This issue affects Nessus: before 10.6.0.

Key facts

CVSS score: 4.1 (v3.1)
Severity: MEDIUM
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N
Weakness (CWE): CWE-522
EPSS score: 0.6% (48th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2023-43927)
Published: August 29, 2023
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2023-43927 in the EU Vulnerability Database. Last updated in EUVD on September 30, 2024.

View on the EU Vulnerability Database

Affected products

tenable / nessus

Certified products that may be affected

3 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Nessus 10.5.3 - Tenable, Inc. - Common Criteria CCEVS-VR-VID-11368-2023 - archived
Nessus Manager 8.11.1 - Tenable, Inc. - Common Criteria CCEVS-VR-VID-11067-2020 - archived
Tenable SecurityCenter 4.4 (SC) and Components: 3D Tool 2.0.1 Log Correlation Engine 3.6 (LCE), Passive Vulnerability Scanner 3.6 (PVS), Nessus 5.0.1, and xTool 2.1 - Tenable Network Security, Inc. - Common Criteria CCEVS-VR-VID-10443-2012 - archived

References

https://www.tenable.com/security/tns-2023-29(Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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