Medium severity · published Feb 13, 2026
CVE-2025-66676
An issue in IObit Unlocker v1.3.0.11 allows attackers to cause a Denial of Service (DoS) via a crafted request
6.2
CVSS
0.2%
EPSS
No
On KEV
Description
An issue in IObit Unlocker v1.3.0.11 allows attackers to cause a Denial of Service (DoS) via a crafted request.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IU
Iobit Unlocker · Iobit
1.3.0.11 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-66676
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-66676
Exploit
https://github.com/cwjchoi01/CVE-2025-66676
Product
https://www.iobit.com/en/iobit-unlocker.php
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7.8
CVE-2020-14975
The driver in IOBit Unlocker 1.1.2 allows a low-privileged user to delete, move, or copy arbitrary files via IOCTL code 0x222124
7.1
CVE-2020-14974
The driver in IOBit Unlocker 1.1.2 allows a low-privileged user to unlock a file and kill processes (even ones running as SYSTEM) that hold a handle, via IOCTL code 0x222124
