What is the CVSS score of CVE-2016-20059?

CVE-2016-20059 has a CVSS 4.0 base score of 8.5 (High). CVSS vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. EPSS exploitation probability: 0.0%.

Is there a public PoC exploit available for CVE-2016-20059?

Yes, a public proof-of-concept exploit is available for CVE-2016-20059. Prioritise patching immediately. EPSS: 0.0%.

Iobit Malware Fighter CVE-2016-20059

EUVD-2016-10867 HIGH

Unquoted Search Path or Element (CWE-428)

2026-04-04 VulnCheck

GHSA-rjmh-3x6m-hgvq

Privilege Escalation Iobit Malware Fighter Iobit

8.5

CVSS 4.0 · Vendor: VulnCheck

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Vulnerability Assessment

Weakness	CWE CWE-428 OWASP Top 10:2025 A06:2025 - Insecure Design ASVS 5.0 V13 - Configuration Path quoting
Impact	CVSS score of 8.5 (HIGH). Attack characteristics: local attack vector, low complexity, low privileges required, no user interaction not required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.01%.
Exploit ScenarioDerived	Successful exploitation could compromise the high-severity affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAI

IObit Malware Fighter 4.3.1 contains an unquoted service path vulnerability in the IMFservice and LiveUpdateSvc services that allows local attackers to escalate privileges. Rated high severity (CVSS 8.5), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affected VersionsENISA

IObit Malware Fighter 4.3.1

Affected Packages

euvd iobit_malware_fighter no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-428. IObit Malware Fighter 4.3.1 contains an unquoted service path vulnerability in the IMFservice and LiveUpdateSvc services that allows local attackers to escalate privileges. Attackers can insert a malicious executable file in the unquoted service path and trigger privilege escalation when the service restarts or the system reboots, executing code with LocalSystem privileges. Affected products include: Iobit Iobit Malware Fighter.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (VulnCheck) PRIMARY 8.5 HIGH

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

Primary rating from Vendor (VulnCheck) · only source for this CVE.

CVSS VectorVendor: VulnCheck

Attack Vector

Local

Attack Complexity

Low

Attack Requirements

None

Privileges Required

Low

User Interaction

None

Vulnerable system: Confidentiality

High

Vulnerable system: Integrity

High

Vulnerable system: Availability

High

Subsequent system: Confidentiality

None

Subsequent system: Integrity

None

Subsequent system: Availability

None

Lifecycle Timeline

PoC Detected

Apr 07, 2026 - 13:20 vuln.today

Public exploit code

CVE Published

Apr 04, 2026 - 13:51 nvd

HIGH 8.5

DescriptionCVE.org

IObit Malware Fighter 4.3.1 contains an unquoted service path vulnerability in the IMFservice and LiveUpdateSvc services that allows local attackers to escalate privileges. Attackers can insert a malicious executable file in the unquoted service path and trigger privilege escalation when the service restarts or the system reboots, executing code with LocalSystem privileges.

Threat Intelligence Overview

EPSS Score

0.0%

Top 98% exploitable

Exploit

POC

Public exploit code exists

Data Quality

7 sources

Confidence: High

EUVD

NVD

CVE.org

EPSS

Vulnrichment

Exploit-DB

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC Yes

EPSS 0.0%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation

Poc

System Exposure· derived

Small

Automatable

Human Impact· derived

Medium

Technical Impact

Total

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +42

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Privilege Escalation HIGH

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.