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

  - Incus is a system container and virtual machine manager. In versions before 7.0.0, broken TLS validation     logic in the OVN database connection logic can allow connections to an attacker's OVN database. The OVN     client implementations disable Go standard TLS server verification and replace it with custom peer-     certificate verification logic. That replacement verifier does not anchor trust in the configured CA     certificate. Instead, it constructs the verification root set from certificates supplied by the peer     during the handshake, so the configured CA is parsed but not used as the trust anchor for the final     verification decision. In OVN-enabled deployments that use these SSL database connection paths, an     attacker able to impersonate or intercept the OVN endpoint on the management network can present a rogue     self-signed certificate chain, and Incus will accept this certificate as valid. This issue defeats the     intended CA-based trust model for OVN database connections and permits endpoint impersonation by an active     attacker in a suitable network position. This issue is fixed in version 7.0.0. (CVE-2026-40243)

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

Detections

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Linux Distros Unpatched Vulnerability : CVE-2026-40243

low Nessus Plugin ID 311660

Version 1.7