CVE-2025-34181 (GCVE-0-2025-34181)
Vulnerability from cvelistv5 – Published: 2025-12-15 14:42 – Updated: 2026-05-14 02:07
VLAI
EPSS
VEX
Title
NetSupport Manager < 14.12.0001 Authenticated Path Traversal Arbitrary File Write RCE
Summary
NetSupport Manager < 14.12.0001 contains an arbitrary file write vulnerability in its Connectivity Server/Gateway PUTFILE request handler. An attacker with a valid Gateway Key can supply a crafted filename containing directory traversal sequences to write files to arbitrary locations on the server. This can be leveraged to place attacker-controlled DLLs or executables in privileged paths and achieve remote code execution in the context of the NetSupport Manager connectivity service.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-15 19:23 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://kb.netsupportsoftware.com/knowledge-base/… | vendor-advisorypatch |
| https://www.vulncheck.com/advisories/netsupport-m… | third-party-advisory |
| https://ret2.me/post/2025-12-04-exploiting-netsup… | technical-descriptionexploit |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| NetSupport Software | Manager |
Affected:
0 , < 14.12.0001
(custom)
|
guessed |
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Sightings
| Author | Source | Type | Date | Other |
|---|
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.