What’s Vulnerable › Vulnerabilities

CVE-2025-34164: NetSupport Manager < 14.12.0000 Heap-Based Buffer Overflow

• Severity: critical (CVSS 9.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-08-30 · updated 2026-10-18
• Weakness: CWE-122

Description

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.

Affected products

• NetSupport Ltd. NetSupport Manager: from 14.0 before 14.12.0000 — fixed in 14.12.0000

How to fix

Upgrade to a fixed version: NetSupport Ltd. NetSupport Manager 14.12.0000. Check the vendor advisory for mitigations.

References

• https://www.netsupportmanager.com/
• https://www.vulncheck.com/advisories/netsupport-client-manager-buffer-overflows

Get alerted when CVE-2025-34164 or the next vulnerability affects your stack