CVE-2020-29238 in the critical feed json
An integer buffer overflow in the Nginx webserver of ExpressVPN Router version 1 allows remote attackers to obtain sensitive information wh…
published 2021-03-10 5 y ago modified 2026-07-09 4 mo ago also EUVD-2020-21617
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 16.5%
- EPSS 16.5% chance of exploitation in 30 days, percentile 97%
- public exploits
- 1
- Exploit-DB
Summary
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
- First public exploit (EDB-49760)
Exploit prediction
16.48% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-49760 ExpressVPN VPN Router 1.0 - Router Login Panel's Integer Overflow webapps, 2021-04-13
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-190 Integer Overflow or Wraparound
References
-
bugcrowd.com
/disclosures/4e8d5325-8e49-4ea3-962a-a088bbb73a3f/expressvpn-router-integer-buffer-overflow-server-info-disclo
third-party-advisory
-
ja1sharma.com
/blog/2021/CVE-2020-29238/
third-party-advisory
-
packetstormsecurity.com
/files/162152/ExpressVPN-VPN-Router-1.0-Integer-Overflow.html
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2020-29238
- NVD CVE-2020-29238
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