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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.

PUBLISHED Reserved 2026-04-04 | Published 2026-04-04 | Updated 2026-04-06 | Assigner VulnCheck




HIGH: 8.5CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem types

Unquoted Search Path or Element

Product status

4.3.1
affected

Credits

Amir.ght finder

References

www.exploit-db.com/exploits/40525 (ExploitDB-40525) exploit

www.iobit.com/en/index.php (Official Product Homepage) product

www.iobit.com/...loadcenter.php?product=malware-fighter-free (Product Reference) product

www.vulncheck.com/...uoted-service-path-privilege-escalation (VulnCheck Advisory: IObit Malware Fighter 4.3.1 Unquoted Service Path Privilege Escalation) third-party-advisory

cve.org (CVE-2016-20059)

nvd.nist.gov (CVE-2016-20059)

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