Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-31604

21
FAUCET Score

CVE-2021-31604 describes a Cross-Site Request Forgery (CSRF) vulnerability in furlongm openvpn-monitor versions up to and including 1.1.3, allowing an attacker to disconnect arbitrary OpenVPN clients. This medium-severity vulnerability (CVSS 6.5) has a network attack vector and low attack complexity, requiring user interaction to achieve a high impact on availability (A:H). There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.1.3CPE matchmatch criteria
cpe:2.3:a:openvpn-monitor_project:openvpn-monitor:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.68%
Probability of exploitation in next 30 days
EPSS Percentile
48.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0068 is in the 53rd percentile among its peer group of 26,234 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

pipGHSA-vw35-c8hf-fwmqmedium

furlongm openvpn-monitor allows CSRF to disconnect an arbitrary client

May 24, 2022

References

packetstormsecurity.com / files/164281/OpenVPN-Monitor-1.1.3-Cross-Site-Request-Forgery.html
ExploitThird Party AdvisoryVDB Entry
github.com / furlongm/openvpn-monitor/releases
Release NotesThird Party Advisory