CVE-2022-24299Network attack vector

Authenticated command execution via unvalidated OpenVPN ciphers

Published Mar 31, 2022 · Updated Aug 3, 2024

Command injection in Netgate pfSense CE before 2.6.0 and pfSense Plus before 22.01 allows remote authenticated users to execute shell commands. The vpn_openvpn_server.php and vpn_openvpn_client.php pages fail to validate data_ciphers in p2p_shared_key mode, and backend code writes crafted OpenVPN script parameters into the generated configuration. Access to change OpenVPN client or server settings is required; successful exploitation permits arbitrary shell commands and file reads or writes.

CVSS severity8.8
High
EPSS probability1.93%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Netgate pfSense CE before 2.6.0 and pfSense Plus before 22.01 allows remote authenticated users to execute shell commands. The vpn_openvpn_server.php and vpn_openvpn_client.php pages fail to validate data_ciphers in p2p_shared_key mode, and backend code writes crafted OpenVPN script parameters into the generated configuration. Access to change OpenVPN client or server settings is required; successful exploitation permits arbitrary shell commands and file reads or writes.

The record

CVE
CVE-2022-24299
Published
Mar 31, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 31, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.4JPCERT/CC and IPACVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P
5.5JPCERT/CC and IPAAV:N/AC:L/Au:S/C:P/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1059.004Unix Shell

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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