How severe is CVE-2025-66676?

CVE-2025-66676 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-66676 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-66676?

CVE-2025-66676 affects Iobit Iobit Unlocker. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-66676?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-66676 have an EU (EUVD) identifier?

Yes. CVE-2025-66676 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206909.

When was CVE-2025-66676 published?

CVE-2025-66676 was published on 2026-02-13 and last updated on 2026-06-17.

CVE-2025-66676

CVE-2025-66676 is a medium-severity vulnerability in Iobit Iobit Unlocker with a CVSS 3.x base score of 6.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Medium (CVSS 3.x base score 6.2)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-206909
Weakness: CWE-400
Affected product: Iobit Iobit Unlocker
Published: 2026-02-13
Last modified: 2026-06-17

Description

An issue in IObit Unlocker v1.3.0.11 allows attackers to cause a Denial of Service (DoS) via a crafted request.

Frequently asked questions

What is 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.
How severe is CVE-2025-66676?: CVE-2025-66676 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-66676 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-66676?: CVE-2025-66676 affects Iobit Iobit Unlocker. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-66676?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-66676 have an EU (EUVD) identifier?: Yes. CVE-2025-66676 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206909.
When was CVE-2025-66676 published?: CVE-2025-66676 was published on 2026-02-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:iobit:iobit_unlocker:1.3.0.11:*:*:*:*:*:*:*

More vulnerabilities in Iobit Iobit Unlocker

CVE-2020-14975 — High (CVSS 7.8): The driver in IOBit Unlocker 1.1.2 allows a low-privileged user to delete, move, or copy arbitrary files via IOCTL code…
CVE-2020-14974 — High (CVSS 7.1): The driver in IOBit Unlocker 1.1.2 allows a low-privileged user to unlock a file and kill processes (even ones running…

All CVEs affecting Iobit Iobit Unlocker →

Other CWE-400 (Uncontrolled Resource Consumption) vulnerabilities

CVE-2026-46775 — Critical (CVSS 9.9): Vulnerability in Oracle REST Data Services (component: Core). Supported versions that are affected are 24.2.0-26.1.0.…
CVE-2025-61303 — Critical (CVSS 9.8): Hatching Triage Sandbox Windows 10 build 2004 (2025-08-14) and Windows 10 LTSC 2021(2025-08-14) contains a…
CVE-2025-43193 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.6, macOS Sonoma 14.7.7,…
CVE-2025-24269 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.4. An app may be able to…
CVE-2025-24264 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4,…
CVE-2025-24260 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.4, macOS Sonoma 14.7.5,…

Browse all CWE-400 (Uncontrolled Resource Consumption) vulnerabilities →