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CVE-2021-31605

25
FAUCET Score

CVE-2021-31605 is a command injection vulnerability in furlongm openvpn-monitor versions through 1.1.3, allowing an attacker to shut down the OpenVPN server via the management interface socket. Rated 7.5 HIGH on CVSS, it has a low attack complexity and requires no user interaction, leading to high availability impact. While no public exploits, Metasploit modules, or community discussions are currently identified, its nature as a command injection vulnerability (CWE-78) warrants attention.

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

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.31%
Probability of exploitation in next 30 days
EPSS Percentile
87.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0331 is in the 77th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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-4258-vcjw-wwxxhigh

furlongm openvpn-monitor command injection

May 24, 2022

References

packetstormsecurity.com / files/164278/OpenVPN-Monitor-1.1.3-Command-Injection.html
Third Party AdvisoryVDB Entry
github.com / furlongm/openvpn-monitor/releases
Third Party Advisory