Vulnerability in Iobit Malware Fighter
CVE-2016-20059
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 · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (6.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Iobit Malware Fighter — versions 4.3.1
- Iobit Malware Fighter
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/40525 (Exploit, VDB Entry, exploit)
- www.iobit.com/en/index.php (Product, product)
- www.iobit.com/downloadcenter.php (Product, product)
- www.vulncheck.com/advisories/iobit-malware-fighter-unquoted-service-path-privil… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2016-20059?
- CVE-2016-20059 is a high-severity vulnerability in Iobit Malware Fighter, classified under Unquoted Search Path or Element. CVSS score: 7.8/10. Published 2026-04-04.
- How severe is CVE-2016-20059?
- High severity. CVSS v3 base score is 7.8 out of 10.