CVE-2025-66676

MEDIUMNVD 6.26.2—Trending — 3 sources updated this weekElevated

6.2

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

CVSS v3: 6.2
EG Score: 6.2(medium)
EPSS: 7.3%
KEV: Not listed

Published

February 13, 2026

Last Modified

March 25, 2026

References (2)

cve@mitrehttps://github.com/cwjchoi01/CVE-2025-66676
cve@mitrehttps://www.iobit.com/en/iobit-unlocker.php

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-400Uncontrolled Resource Consumption (Denial of Service)

Data Freshness Timeline

(refreshed 7× in last 7d / 7× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:56 UTCEG score recompute
2026-05-29 13:56 UTCGHSA enrichment
2026-05-29 13:44 UTCepss_batch

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

GitHub PoCcwjchoi01/CVE-2025-66676
First seen Feb 9, 2026
CVE-2025-66676
Open source ↗

Frequently asked(5)

What is CVE-2025-66676?

CVE-2025-66676 is a medium vulnerability published on February 13, 2026. An issue in IObit Unlocker v1.3.0.11 allows attackers to cause a Denial of Service (DoS) via a crafted request.

When was CVE-2025-66676 disclosed?

CVE-2025-66676 was first published in the National Vulnerability Database on February 13, 2026, with the most recent update on March 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-66676 actively exploited?

CVE-2025-66676 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-66676?

CVE-2025-66676 has a CVSS v3 base score of 6.2 (NVD).

How do I remediate CVE-2025-66676?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-66676, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2025-66676

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-66676?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)