CVE-2026-111231
Last modified
CVE-2026-111231 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. Netgate pfSense CE through 2.9.0 contains an authorization bypass vulnerability that allows read-only WebGUI users to replace config.xml because config_restore() and config_install() ignore the 'User - Config: Deny Config Write' privilege. Attackers holding page privileges for services_acb.php, uploadconfig.php, diag_confbak.php, or diag_backup.php can install a chosen config.xml to gain root-level code execution after reload or reboot..
Description
Netgate pfSense CE through 2.9.0 contains an authorization bypass vulnerability that allows read-only WebGUI users to replace config.xml because config_restore() and config_install() ignore the 'User - Config: Deny Config Write' privilege. Attackers holding page privileges for services_acb.php, uploadconfig.php, diag_confbak.php, or diag_backup.php can install a chosen config.xml to gain root-level code execution after reload or reboot.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Netgate | pfSense CE | <= 2.9.0 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-111231?
How severe is CVE-2026-111231?
How do I fix CVE-2026-111231?
How Strix Helps
- Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-111226pfSense CE 2.4.5 through 2.9.0 contains an OS command inject…7.2
- CVE-2026-111227Netgate pfSense CE through 2.9.0 contains a CRLF injection v…5.5
- CVE-2026-111228Netgate pfSense CE from 2.7.1 through 2.9.0 contains a CRLF …5.5
- CVE-2026-111229pfSense CE 2.7.0 through 2.9.0 contains a command injection …7.2
- CVE-2026-11123Uninitialized Use in ANGLE in Google Chrome prior to 149.0.7…6.5
- CVE-2026-111230Netgate pfSense CE through 2.9.0 contains a local file read …4.9
- CVE-2026-111232Netgate pfSense CE 2.3.0 through 2.9.0 contains a stored cro…4.8
- CVE-2026-111233Netgate pfSense CE 2.7.1 through 2.9.0 contains a reflected …4.7
- CVE-2026-111234SimplePie through 1.9.0 contains a local file read vulnerabi…5.9
- CVE-2026-111235An authorization bypass vulnerability exists in the REST API…9.1
- CVE-2026-11124Integer overflow in Skia in Google Chrome prior to 149.0.782…8.8
- CVE-2026-11125Use after free in Compositing in Google Chrome prior to 149.…8.8
Are you affected by CVE-2026-111231?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
