CVE-2020-29238

HIGH

ExpressVPN Router < - Info Disclosure

Title source: llm

Description

An integer buffer overflow in the Nginx webserver of ExpressVPN Router version 1 allows remote attackers to obtain sensitive information when the server running as reverse proxy via specially crafted request.

Exploits (1)

exploitdb WORKING POC

by Jai Kumar Sharma · textwebappsmultiple

https://www.exploit-db.com/exploits/49760

View Code ZIP pw:eip

References (4)

[Vendor Advisory] http://expressvpn.com

[Third Party Advisory] https://bugcrowd.com/disclosures/4e8d5325-8e49-4ea3-962a-a088bbb73a3f/expressvpn-router-integer-buffer-overflow-server-info-disclosure-when-router-s-nginx-server-used-as-reverse-proxy-server

[Third Party Advisory] http://ja1sharma.com/blog/2021/CVE-2020-29238/

[Third Party Advisory, VDB Entry] http://packetstormsecurity.com/files/162152/ExpressVPN-VPN-Router-1.0-Integer-Overflow.html

Scores

CVSS v3 7.5

EPSS 0.4960

EPSS Percentile 97.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

CWE

CWE-190

Status published

Products (1)

expressvpn/expressvpn 1.0

Published Mar 10, 2021

Tracked Since Feb 18, 2026