CVE-2020-29238

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Published Mar 10, 2021 CVSS 3.1 · 7.5 High EPSS 16.5% KEV · Not listed

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:expressvpn:expressvpn:1.0:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

Exploit prediction score: 16.5% (16.483% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
http://ja1sharma.com/blog/2021/CVE-2020-29238/
http://packetstormsecurity.com/files/162152/ExpressVPN-VPN-Router-1.0-Integer-Overflow.html
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

History

No history.

Subscriptions

Expressvpn Expressvpn

Weaknesses

CWE-190

Sources

CVE record Updated: Jul 9, 2026, 12:12 AM

Status: PUBLISHED
Assigner: mitre
Published: Mar 10, 2021, 2:10 AM
Updated: Jul 9, 2026, 12:12 AM
Reserved: Nov 27, 2020, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jul 9, 2026, 1:16 AM

Status: Modified
Published: Mar 10, 2021, 3:15 AM
Modified: Jul 9, 2026, 1:16 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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