NetSupport Manager 9.10/10.20/11.00 stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in NetSupport Manager. It has been declared as critical. Affected by this vulnerability is an unknown functionality. Such manipulation leads to stack-based overflow. This vulnerability is uniquely identified as CVE-2025-34165. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in NetSupport Manager. It has been rated as critical. Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is availability. CVE summarizes:

A stack-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 potentially leak a limited amount of memory.

The weakness was disclosed by Fabian Weber. The advisory is shared for download at netsupportmanager.com. This vulnerability is handled as CVE-2025-34165 since 04/15/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 14.12.0000 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-26248). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Manager 14.12.0000

Timelineinfo

04/15/2025 CVE reserved
08/30/2025 +137 days Advisory disclosed
08/30/2025 +0 days VulDB entry created
08/31/2025 +1 days VulDB entry last update

Sourcesinfo

Advisory: netsupportmanager.com
Researcher: Fabian Weber
Status: Confirmed

CVE: CVE-2025-34165 (🔒)
GCVE (CVE): GCVE-0-2025-34165
GCVE (VulDB): GCVE-100-321992
EUVD: 🔒

Entryinfo

Created: 08/30/2025 08:48
Updated: 08/31/2025 16:25
Changes: 08/30/2025 08:48 (67), 08/31/2025 16:25 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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