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    CVE-2026-111231

    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.

    Published:Oct 15, 2026
    Last Modified:Oct 26, 2026
    EPS:Oct 15, 2026
    EPSS Score:0.00842
    CVSS Score:7.2

    Affected Products

    Vendor
    Netgate
    Product
    Pfsense
    Vendor
    Pfsense
    Product
    Pfsense

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-863 Incorrect Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-111230 (CVSS 6.9) — Netgate pfSense CE through 2.9.0 contains a local file read vulnerability that allows users with the Dynamic D…
    CVE-2026-111229 (CVSS 8.6) — pfSense CE 2.7.0 through 2.9.0 contains a command injection vulnerability in services_captiveportal_hasync.php…
    CVE-2026-111228 (CVSS 5.1) — Netgate pfSense CE from 2.7.1 through 2.9.0 contains a CRLF injection vulnerability in services_unbound_advanc…
    CVE-2026-111227 (CVSS 5.1) — Netgate pfSense CE through 2.9.0 contains a CRLF injection vulnerability in services_unbound_acls.php that all…
    CVE-2026-111226 (CVSS 8.6) — pfSense CE 2.4.5 through 2.9.0 contains an OS command injection vulnerability that allows authenticated WebGUI…
    CVE-2026-111225 (CVSS 2.3) — Netgate pfSense CE 2.5.0 through 2.9.0 contains an OS command injection vulnerability in openvpn.learn-address…
    CVE-2026-111224 (CVSS 7.7) — pfSense CE through 2.9.0 contains an OS command injection vulnerability in the OpenVPN openvpn.connect_async.s…
    CVE-2026-111223 (CVSS 8.6) — Netgate pfSense CE 2.7.0 through 2.9.0 contains a configuration injection vulnerability that allows authentica…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High