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.

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Iobit IObit Malware Fighter affected
Version Status Constraints
4.3.1 affected —

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Iobit Subscribe
Malware Fighter Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
http://www.iobit.com/downloadcenter.php?product=malware-fighter-free cve-icon cve-icon
http://www.iobit.com/en/index.php cve-icon cve-icon
https://www.exploit-db.com/exploits/40525 cve-icon cve-icon
https://www.vulncheck.com/advisories/iobit-malware-fighter-unquoted-service-path-privilege-escalation cve-icon cve-icon
History

Sat, 04 Apr 2026 15:00:00 +0000

Type Values Removed Values Added
Description 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.
Title IObit Malware Fighter 4.3.1 Unquoted Service Path Privilege Escalation
First Time appeared Iobit
Iobit malware Fighter
Weaknesses CWE-428
CPEs cpe:2.3:a:iobit:malware_fighter:11.0.0.1274:*:*:*:*:*:*:*
cpe:2.3:a:iobit:malware_fighter:4.0.3.22:*:*:*:*:*:*:*
cpe:2.3:a:iobit:malware_fighter:4.2.02425:*:*:*:*:*:*:*
cpe:2.3:a:iobit:malware_fighter:4.3.1:*:*:*:*:*:*:*
cpe:2.3:a:iobit:malware_fighter:4.5.03457:*:*:*:*:*:*:*
cpe:2.3:a:iobit:malware_fighter:5.5.0:*:*:*:*:*:*:*
cpe:2.3:a:iobit:malware_fighter:8.0.2.547:*:*:*:-:*:*:*
cpe:2.3:a:iobit:malware_fighter:8.0.2.547:*:*:*:pro:*:*:*
cpe:2.3:a:iobit:malware_fighter:9.2:*:*:*:*:*:*:*
cpe:2.3:a:iobit:malware_fighter:9.4.0.776:*:*:*:*:*:*:*
Vendors & Products Iobit
Iobit malware Fighter
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.5, '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-04T16:13:49.404Z

Reserved: 2026-04-04T13:42:51.909Z

Link: CVE-2016-20059

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-04T14:16:18.557

Modified: 2026-04-04T14:16:18.557

Link: CVE-2016-20059

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses