Detections
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Linux Distros Unpatched Vulnerability : CVE-2026-85393

high Nessus Plugin ID 342722

Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - node-forge through 1.4.0 fails to validate element count in nested DigestAlgorithm sequences during RSA PKCS#1 v1.5 signature verification. Attackers can embed garbage bytes inside the DigestAlgorithm sequence to forge valid signatures for arbitrary messages using low-exponent RSA keys. This is an incomplete fix for CVE-2026-33894. (CVE-2026-85393)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2026-85393

Plugin Details

Severity: High

ID: 342722

File Name: unpatched_CVE_2026_85393.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Misc.

Published: 9/4/2026

Updated: 9/4/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.64

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2026-85393

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:centos:centos:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:centos:centos:aspnetcore-runtime-6.0, p-cpe:/a:centos:centos:aspnetcore-runtime-7.0, p-cpe:/a:centos:centos:aspnetcore-targeting-pack-6.0, p-cpe:/a:centos:centos:aspnetcore-targeting-pack-7.0, p-cpe:/a:centos:centos:cockpit-ha-cluster, p-cpe:/a:centos:centos:dotnet-apphost-pack-6.0, p-cpe:/a:centos:centos:dotnet-apphost-pack-7.0, p-cpe:/a:centos:centos:dotnet-host, p-cpe:/a:centos:centos:dotnet-hostfxr-6.0, p-cpe:/a:centos:centos:dotnet-hostfxr-7.0, p-cpe:/a:centos:centos:dotnet-runtime-6.0, p-cpe:/a:centos:centos:dotnet-runtime-7.0, p-cpe:/a:centos:centos:dotnet-sdk-6.0-source-built-artifacts, p-cpe:/a:centos:centos:dotnet-sdk-6.0, p-cpe:/a:centos:centos:dotnet-sdk-7.0-source-built-artifacts, p-cpe:/a:centos:centos:dotnet-sdk-7.0, p-cpe:/a:centos:centos:dotnet-targeting-pack-6.0, p-cpe:/a:centos:centos:dotnet-targeting-pack-7.0, p-cpe:/a:centos:centos:dotnet-templates-6.0, p-cpe:/a:centos:centos:dotnet-templates-7.0, p-cpe:/a:centos:centos:dotnet6.0, p-cpe:/a:centos:centos:dotnet7.0, p-cpe:/a:centos:centos:grafana-azure-monitor, p-cpe:/a:centos:centos:grafana-cloudwatch, p-cpe:/a:centos:centos:grafana-elasticsearch, p-cpe:/a:centos:centos:grafana-graphite, p-cpe:/a:centos:centos:grafana-influxdb, p-cpe:/a:centos:centos:grafana-loki, p-cpe:/a:centos:centos:grafana-mssql, p-cpe:/a:centos:centos:grafana-mysql, p-cpe:/a:centos:centos:grafana-opentsdb, p-cpe:/a:centos:centos:grafana-postgres, p-cpe:/a:centos:centos:grafana-prometheus, p-cpe:/a:centos:centos:grafana-selinux, p-cpe:/a:centos:centos:grafana-stackdriver, p-cpe:/a:centos:centos:grafana, p-cpe:/a:centos:centos:netstandard-targeting-pack-2.1, p-cpe:/a:centos:centos:pcs-snmp, p-cpe:/a:centos:centos:pcs, p-cpe:/a:redhat:enterprise_linux:aspnetcore-runtime-6.0, p-cpe:/a:redhat:enterprise_linux:aspnetcore-runtime-7.0, p-cpe:/a:redhat:enterprise_linux:aspnetcore-targeting-pack-6.0, p-cpe:/a:redhat:enterprise_linux:aspnetcore-targeting-pack-7.0, p-cpe:/a:redhat:enterprise_linux:cockpit-ha-cluster, p-cpe:/a:redhat:enterprise_linux:dotnet-apphost-pack-6.0, p-cpe:/a:redhat:enterprise_linux:dotnet-apphost-pack-7.0, p-cpe:/a:redhat:enterprise_linux:dotnet-host, p-cpe:/a:redhat:enterprise_linux:dotnet-hostfxr-6.0, p-cpe:/a:redhat:enterprise_linux:dotnet-hostfxr-7.0, p-cpe:/a:redhat:enterprise_linux:dotnet-runtime-6.0, p-cpe:/a:redhat:enterprise_linux:dotnet-runtime-7.0, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-6.0-source-built-artifacts, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-6.0, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-7.0-source-built-artifacts, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-7.0, p-cpe:/a:redhat:enterprise_linux:dotnet-targeting-pack-6.0, p-cpe:/a:redhat:enterprise_linux:dotnet-targeting-pack-7.0, p-cpe:/a:redhat:enterprise_linux:dotnet-templates-6.0, p-cpe:/a:redhat:enterprise_linux:dotnet-templates-7.0, p-cpe:/a:redhat:enterprise_linux:dotnet6.0, p-cpe:/a:redhat:enterprise_linux:dotnet7.0, p-cpe:/a:redhat:enterprise_linux:grafana-azure-monitor, p-cpe:/a:redhat:enterprise_linux:grafana-cloudwatch, p-cpe:/a:redhat:enterprise_linux:grafana-elasticsearch, p-cpe:/a:redhat:enterprise_linux:grafana-graphite, p-cpe:/a:redhat:enterprise_linux:grafana-influxdb, p-cpe:/a:redhat:enterprise_linux:grafana-loki, p-cpe:/a:redhat:enterprise_linux:grafana-mssql, p-cpe:/a:redhat:enterprise_linux:grafana-mysql, p-cpe:/a:redhat:enterprise_linux:grafana-opentsdb, p-cpe:/a:redhat:enterprise_linux:grafana-postgres, p-cpe:/a:redhat:enterprise_linux:grafana-prometheus, p-cpe:/a:redhat:enterprise_linux:grafana-selinux, p-cpe:/a:redhat:enterprise_linux:grafana-stackdriver, p-cpe:/a:redhat:enterprise_linux:grafana, p-cpe:/a:redhat:enterprise_linux:netstandard-targeting-pack-2.1, p-cpe:/a:redhat:enterprise_linux:pcs-snmp, p-cpe:/a:redhat:enterprise_linux:pcs

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 9/3/2026

Reference Information

CVE: CVE-2026-85393