Privilege escalation in Iobit Unlocker
CVE-2026-82671
A vulnerability has been found in IObit Unlocker 1.3.0.12. This vulnerability affects the function ZwTerminateProcess in the library IObitUnlocker.sys of the component IRP_MJ_DEVICE_CONTROL Handler. The manipulation leads to improper privilege management. An attack has to be approached locally. The vendor was contacted early about this disclosure but did not respond in any way.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.4 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (4.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 4.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000
Affected products
- Iobit Unlocker — versions 1.3.0.12
Weakness classification (CWE)
References
- vuldb.com/vuln/397170 (technical-description, vdb-entry)
- vuldb.com/vuln/397170/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-82671 (third-party-advisory)
- vuldb.com/submit/893879 (third-party-advisory)
Frequently asked questions
- What is CVE-2026-82671?
- CVE-2026-82671 is a low-severity vulnerability in Iobit Unlocker, classified under Incorrect Privilege Assignment. CVSS score: 3.4/10. Published 2026-08-31.
- How severe is CVE-2026-82671?
- Low severity. CVSS v3 base score is 3.4 out of 10.