CVE-2017-7720

HIGH

PrivateTunnel 2.7-2.8 - Buffer Overflow

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2017-7720. PoCs published by Muhann4d.

AI-analyzed exploit summary This exploit demonstrates a local buffer overflow in Private Tunnel VPN Client 2.8 by overwriting SEH with a crafted payload. It generates a malicious input file (poc.txt) designed to crash the application when pasted into the password field.

Description

Buffer overflow in PrivateTunnel 2.7 and 2.8 allows local attackers to cause a denial of service (SEH overwrite) or possibly have unspecified other impact via a long password.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Muhann4d · pythondoswindows
https://www.exploit-db.com/exploits/41916

This exploit demonstrates a local buffer overflow in Private Tunnel VPN Client 2.8 by overwriting SEH with a crafted payload. It generates a malicious input file (poc.txt) designed to crash the application when pasted into the password field.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Private Tunnel VPN Client 2.8 & 2.7
No auth needed
Prerequisites: Local access to the target system · Private Tunnel VPN Client installed
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References
Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/41916/

Scores

CVSS v3 7.8
EPSS 0.0038
EPSS Percentile 29.4%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-119
Status published
Products (2)
privatetunnel/privatetunnel 2.7
privatetunnel/privatetunnel 2.8
Published Apr 26, 2017
Tracked Since Feb 18, 2026