Linux Distros Unpatched Vulnerability : CVE-2026-115393

low Nessus Plugin ID 371017

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.

- Wasmtime before 24.0.12, 25.0.0 before 36.0.13, 37.0.0 before 46.0.2, and 47.0.0 before 47.0.3 contains a type confusion vulnerability because several Store APIs fail to validate that objects belong to the Store's Engine. Embedders mixing objects between Engines via Instance::new, StructRefPre::new, or Tag::new can trigger trampoline signature mismatches causing out-of-bounds stack writes, GC heap corruption, or panics. (CVE-2026-115393)

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-2026-115393

https://security-tracker.debian.org/tracker/CVE-2026-115393

https://ubuntu.com/security/CVE-2026-115393

Plugin Details

Severity: Low

ID: 371017

File Name: unpatched_CVE_2026_115393.nasl

Version: 1.10

Type: Local

Agent: unix

Family: Misc.

Published: 10/23/2026

Updated: 11/10/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.8

Percentile: 22.22

CVSS v2

Risk Factor: Low

Base Score: 3.4

Temporal Score: 2.9

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

CVSS Score Source: CVE-2026-115393

CVSS v3

Risk Factor: Low

Base Score: 3.8

Temporal Score: 3.5

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

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

CVSS v4

Risk Factor: Low

Base Score: 1

Threat Score: 0.1

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

CPE: cpe:/a:redhat:enterprise_linux:10, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.10, cpe:/o:debian:debian_linux:13.0, cpe:/o:redhat:enterprise_linux:10, p-cpe:/a:canonical:ubuntu_linux:rust-wasmtime, p-cpe:/a:debian:debian_linux:rust-wasmtime, p-cpe:/a:redhat:enterprise_linux:tree-sitter, p-cpe:/a:redhat:enterprise_linux:virt-firmware-rs

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: 10/22/2026

Reference Information

CVE: CVE-2026-115393