CVE-2026-111231

waiting for further signalsZero needs more public information before it can validate it.

GHSA-prh2-rh73-jcp7 ↗EUVD-2026-102343 ↗

no check availablenot proven exploitable
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).+52mkevAttacks confirmed in the real world.
Netgate pfSense CE <= 2.9.0
CWE-863 Incorrect Authorization
ETK-2026-1712Zero's internal tracking ID, independent of the CVE number., permanent identifier
5d 11h 22msince last run
22mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = trigger signal
trigger signal (cve.org) +0mpublic poc+52mwaiting for further signals+223m
0
+10min
+20min
+30min
+40min

description

pfSense CE through 2.9.0 does not consistently enforce the configuration-write restriction in certain WebGUI configuration-management functions. An authenticated user granted access to affected WebGUI pages may replace the system configuration and achieve root-level code execution when it is reloaded or the device reboots.

mitigation

Restrict access to the affected WebGUI configuration-management pages to fully trusted administrators, and review existing account page privileges. Limit WebGUI access to administrative networks and monitor configuration changes until a vendor-fixed release is identified.

check
no
exploit
no
automationDeterministic: a check that runs on its own, the same request on every target. Contextual: an agentic technique that needs to be applied per target, for bugs that depend on contextual flows.
contextual
auth requiredWhether an attacker needs an account first, based on the CVSS vector's Privileges Required.
yes, high privileges
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
0.83%56th percentile
agent run time
22m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-15 18:46Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
+52m
Δ to kevAttacks confirmed in the real world.
–

outcome

Contextual: an exploit technique exists, but no deterministic check could cover this one.

source signals

Public signals that triggered or updated the pipeline. These are inputs for the deltas above.

  1. 2026-10-15 18:46Z
    cve_org: trigger signal, started the run
  2. 2026-10-15 19:38Z

this entry in the feed

GET /api/v1/feed/CVE-2026-111231

{
  "etk_id": "ETK-2026-1712",
  "cve_id": "CVE-2026-111231",
  "display_id": "CVE-2026-111231",
  "ghsa_id": "GHSA-prh2-rh73-jcp7",
  "euvd_id": "EUVD-2026-102343",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Authorization bypass in pfSense CE configuration management",
  "summary": "pfSense CE through 2.9.0 does not consistently enforce the configuration-write restriction in certain WebGUI configuration-management functions. An authenticated user granted access to affected WebGUI pages may replace the system configuration and achieve root-level code execution when it is reloaded or the device reboots.",
  "mitigation": "Restrict access to the affected WebGUI configuration-management pages to fully trusted administrators, and review existing account page privileges. Limit WebGUI access to administrative networks and monitor configuration changes until a vendor-fixed release is identified.",
  "vendor": "Netgate",
  "product": "pfSense CE",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, <= 2.9.0"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "pfSense CE",
      "purl": null
    }
  ],
  "cwes": [
    863
  ],
  "cvss_score": 8.6,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
  "epss_score": 0.0083,
  "epss_percentile": 0.5671,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 21.648187333333333,
  "t0_at": "2026-10-15T18:46:31.461000+00:00",
  "signals": {
    "public_poc": {
      "at": "2026-10-15T19:38:13.375944+00:00",
      "days": 0.035901793333333334,
      "is_lower_bound": false,
      "measured_at": "2026-10-15T18:46:31.461000+00:00",
      "url": "https://github.com/abraxas/pfsense-config-readonly-restore"
    },
    "trigger_signal": {
      "at": "2026-10-15T18:46:31.461000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-15T18:46:31.461000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-111231"
    }
  }
}

published 2026-10-15 19:24Z
last change 2026-10-21 07:48Z

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