What is CVE-2025-66676?

CVE-2025-66676 is a medium-severity vulnerability in Iobit Iobit_unlocker, classified under Uncontrolled Resource Consumption. CVSS score: 6.2/10. Published 2026-02-13.

How severe is CVE-2025-66676?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Is CVE-2025-66676 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Resource exhaustion in Iobit Iobit_unlocker

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.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.002 (5.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Iobit Iobit_unlocker — versions 1.3.0.11
N/a — versions n/a

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

Public proof-of-concept exploits

cwjchoi01/CVE-2025-66676

References

cve@mitre.org (Product)
cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-66676?: CVE-2025-66676 is a medium-severity vulnerability in Iobit Iobit_unlocker, classified under Uncontrolled Resource Consumption. CVSS score: 6.2/10. Published 2026-02-13.
How severe is CVE-2025-66676?: Medium severity. CVSS v3 base score is 6.2 out of 10.
Is CVE-2025-66676 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.