Netgate pfSense CE up to 2.9.0 Timezone Configuration php.ini timezone code injection

Summaryinfo

A vulnerability was found in Netgate pfSense CE up to 2.9.0. It has been classified as very critical. The impacted element is an unknown function of the file php.ini of the component Timezone Configuration. The manipulation of the argument timezone leads to code injection. This vulnerability is referenced as CVE-2026-111222. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Netgate pfSense CE up to 2.9.0 and classified as very critical. This issue affects an unknown code block of the file php.ini of the component Timezone Configuration. The manipulation of the argument timezone with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Netgate pfSense CE through 2.9.0 contains a php.ini injection vulnerability that allows authenticated users with General Setup privileges to inject directives by submitting an unvalidated timezone value. Attackers can embed a quote and newline to add auto_prepend_file pointing at /var/db/zoneinfo, executing PHP as root after php.ini is regenerated at boot or php-fpm restart.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-111222 since 10/15/2026. The exploitation is known to be easy. The attack may be initiated remotely. The exploitation requires an enhanced level of successful authentication. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/15/2026). MITRE ATT&CK project uses the attack technique T1059 for this issue.

By approaching the search of inurl:php.ini it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Firewall Software

Vendor

• Netgate

Name

• pfSense CE

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9.0

License

• open-source

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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