CVE-2025-34164

CRITICALNVD 9.3

9.3

A heap-based buffer overflow vulnerability in NetSupport Manager 14.x versions prior to 14.12.0000 allows a remote, unauthenticated attacker to cause a denial of service (DoS) or execute arbitrary code.

CVSS v3: 9.3
EG Score: 0.0(none)
EPSS: 77.9%
KEV: Not listed

Published

August 30, 2025

Last Modified

April 15, 2026

References (2)

disclosure@vulncheckhttps://www.netsupportmanager.com/
disclosure@vulncheckhttps://www.vulncheck.com/advisories/netsupport-client-manager-buffer-overflows

Weakness Classification(1)

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

CWE-122Heap-based Buffer Overflow

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-2025-34164?

CVE-2025-34164 is a critical vulnerability published on August 30, 2025. A heap-based buffer overflow vulnerability in NetSupport Manager 14.x versions prior to 14.12.0000 allows a remote, unauthenticated attacker to cause a denial of service (DoS) or execute arbitrary code.

When was CVE-2025-34164 disclosed?

CVE-2025-34164 was first published in the National Vulnerability Database on August 30, 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-2025-34164 actively exploited?

CVE-2025-34164 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 77.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-34164?

CVE-2025-34164 has a CVSS v3 base score of 9.3 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 0.0.

How do I remediate CVE-2025-34164?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-34164, 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-2025-34164

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-34164?

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Published

Last Modified

References (2)

Frequently asked(5)

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