Stack-Based Buffer Overflow in NetSupport Manager
CVE-2025-34165

8.8HIGH

Key Information:

Vendor

Netsupport Ltd.

Status
Netsupport Manager
Vendor
CVE Published:
29 August 2025

What is CVE-2025-34165?

A significant buffer overflow vulnerability in NetSupport Manager exists in versions prior to 14.12.0000. This flaw permits a remote, unauthenticated attacker to exploit the stack memory, potentially leading to a denial of service (DoS) or the leakage of limited amounts of sensitive memory data. Organizations using affected versions are advised to upgrade promptly to ensure system integrity and security.

Affected Version(s)

NetSupport Manager 14.x < 14.12.0000

References

https://www.netsupportmanager.com/
product
https://www.vulncheck.com/advisories/netsupport-client-ma...
third-party-advisory

CVSS V4

Score:
8.8
Severity:
HIGH
Confidentiality:
Low
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Fabian Weber of CODE WHITE
.
CVE-2025-34165 : Stack-Based Buffer Overflow in NetSupport Manager