CVE & CISA-KEV Catalog

CVE-2026-104809

HIGH
8.4
CVSS v4
NVD

Description

DigitalCanion has discovered a vulnerability that allows an attacker to cause the system to load an attacker-controlled .so file instead of the expected legitimate module. The loading mechanism relies on a predictable module name without adequately verifying the file’s origin or integrity. A malicious shared object using the expected name can therefore be loaded by a privileged process. The module code then executes within the context and privileges of that process. This results in arbitrary code execution and full compromise of the Mitel Linux virtual machine.

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v4 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone

Impact

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:X/U:Amber

Exploit Intelligence

0.09%probability of exploitation in 30 days
0thpercentile

Low risk: more likely to be exploited than 0% of all known CVEs.

References

Other references1

Related Vulnerabilities

Other CWE-73 (External Control of File Name or Path) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2022-39952Critical9.8100%-Fix
CVE-2024-8517Critical9.895%-Fix
CVE-2025-33053High8.887%KEVFix
CVE-2023-4634Critical9.886%-Fix
CVE-2024-43451Medium6.584%KEVFix
CVE-2018-17246Critical9.882%-Fix

Common questions

How do I fix CVE-2026-104809?

No published fix for CVE-2026-104809 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

Is CVE-2026-104809 being actively exploited?

Not that we know of. CVE-2026-104809 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.09% is the estimated probability that it will be exploited in the next 30 days. That is higher than 0% of all scored CVEs.

How severe is CVE-2026-104809?

CVE-2026-104809 has a CVSS v4 base score of 8.4, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-10-06.