Integer overflow in Expressvpn
CVE-2020-29238
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.
Vulnerability class: Integer Overflow
EPSS: 0.164 (96.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Expressvpn — versions 1.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- af854a3a-2127-422b-91ae-364da2661108 (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-29238?
- CVE-2020-29238 is a high-severity vulnerability in Expressvpn, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2021-03-10.
- How severe is CVE-2020-29238?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-29238 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.