CVE-2025-8421

MEDIUMNVD 6.66.6—

6.6

An improper default permission vulnerability was reported in Lenovo Dock Manager that, under certain conditions during installation, could allow an authenticated local user to redirect log files with elevated privileges.

CVSS v3: 6.6
EG Score: 6.6(medium)
EPSS: 1.6%
KEV: Not listed

Published

November 12, 2025

Last Modified

April 15, 2026

References (1)

psirt@lenovohttps://support.lenovo.com/us/en/product_security/LEN-198729

Weakness Classification(1)

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

CWE-276Incorrect Default Permissions

Data Freshness Timeline

(refreshed 11× in last 7d / 20× 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.

2026-06-05 06:10 UTCepss_batch
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Frequently asked(5)

What is CVE-2025-8421?

CVE-2025-8421 is a medium vulnerability published on November 12, 2025. An improper default permission vulnerability was reported in Lenovo Dock Manager that, under certain conditions during installation, could allow an authenticated local user to redirect log files with elevated privileges.

When was CVE-2025-8421 disclosed?

CVE-2025-8421 was first published in the National Vulnerability Database on November 12, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-8421 actively exploited?

CVE-2025-8421 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-8421?

CVE-2025-8421 has a CVSS v3 base score of 6.6 (NVD).

How do I remediate CVE-2025-8421?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-8421, 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-2025-8421

📅 Published

🔄 Last Modified

🔗 References (1)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-8421?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (1)

Frequently asked(5)

Related CVEs(same CWE)