CVE•Published 2021-03-10•Modified 2026-07-09•1 article on news•6 live references•NVD data
CVE-2020-29238Expressvpn · Expressvpn
Vulnerability data via NVD (ingested)
CVSS v3.1
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS percentile
97
Exploit Prediction Scoring System · top 3% of all CVEs
Weaknesses (CWE)
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.
Timeline
Published 2021-03-10
Modified 2026-07-09
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2020-29238Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product + version
product:"Expressvpn Expressvpn" version:"1.0"Version-pinned fingerprint from NVD's first vulnerable CPE.
Shodan · banner/body mention
http.html:"Expressvpn"HTTP body or banner mentions "Expressvpn" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2020-29238Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2020-29238Censys host search filtered to this CVE id.
grep.app
CVE-2020-29238Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2020-29238GitHub code search for direct mentions.
Google dork
"CVE-2020-29238" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.