[R1] Nessus Version 10.12.5 Fixes Multiple Vulnerabilities

Critical

Synopsis

Several vulnerabilities have been identified, reported to Tenable and resolved. Please see the full list of resolved issues below.

Issue

CVE ID 

   Severity      

CVSS v3 Base/Temporal

CVSS v3 Vector

An SQL injection vulnerability could allow an authenticated user to read or modify data stored by Nessus.

CVE-2026-103946

High

8.3 / 7.7

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L/E:F/RL:O/RC:C

Nessus did not sufficiently verify the integrity of certain downloaded content before using it, which could allow an authenticated, privileged attacker to compromise the system.

CVE-2026-103947

Critical

9.1 / 8.4

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C

Improper handling of inconsistent length values could allow an authenticated, privileged attacker to compromise the confidentiality, integrity or availability of Nessus.

CVE-2026-103948

High

7.2 / 6.7

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

A type confusion vulnerability could allow an authenticated, privileged attacker to compromise the confidentiality, integrity or availability of Nessus.

CVE-2026-103950

High

7.2 / 6.7

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

An out-of-bounds write vulnerability could allow an authenticated, privileged attacker to compromise the confidentiality, integrity or availability of Nessus.

CVE-2026-103951

High

7.2 / 6.7

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

An out-of-bounds write vulnerability could allow an authenticated, privileged attacker to cause a denial of service in Nessus.

CVE-2026-103952

Medium

4.9 / 4.6

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:F/RL:O/RC:C

A memory management vulnerability could allow an authenticated, privileged attacker to cause a denial of service in Nessus.

CVE-2026-103953

Medium

4.9 / 4.6

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:F/RL:O/RC:C

An out-of-bounds read vulnerability could allow an authenticated, privileged attacker to disclose limited information from Nessus.

CVE-2026-103954

Low

2.7 / 2.5

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N/E:F/RL:O/RC:C

Inadequate limits on resource consumption could allow an authenticated, privileged attacker to cause a denial of service in Nessus.

CVE-2026-103955

Medium

4.9 / 4.6

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:F/RL:O/RC:C

Solution

Tenable has released Nessus version 10.12.5 to address these issues. The installation files can be obtained from the Tenable Downloads Portal (https://www.tenable.com/downloads/nessus).

Additional References

https://docs.tenable.com/release-notes/Content/nessus/2026.htm#

This page contains information regarding security vulnerabilities that may impact Tenable's products. This may include issues specific to our software, or due to the use of third-party libraries within our software. Tenable strongly encourages users to ensure that they upgrade or apply relevant patches in a timely manner.

Tenable takes product security very seriously. If you believe you have found a vulnerability in one of our products, we ask that you please work with us to quickly resolve it in order to protect customers. Tenable believes in responding quickly to such reports, maintaining communication with researchers, and providing a solution in short order.

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