CVE-2026-47711

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

GHSA-vrpm-9gm2-x552 ↗EUVD-2026-124672 ↗

no check availablenot proven exploitable
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).kevAttacks confirmed in the real world.
bacnet-stack < =1.6.0-rc1
fixed in 1.4.4, 1.5.1, 1.6.0
CWE-121 Stack-based Buffer Overflow
ETK-2026-4314Zero's internal tracking ID, independent of the CVE number., permanent identifier
6h 19msince last run
1h 12mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = cve.org publication
trigger signal (cve.org) +0hwaiting for further signals+1h34m
0
+4h
+6h
+8h
+10h
+12h

description

Affected bacnet-stack demo server releases contain a stack buffer overflow. A remote party that can reach the BACnet/IP service may crash the server; the affected demo server must be deployed and network-accessible.

mitigation

Upgrade bacnet-stack to 1.4.4, 1.5.1, or 1.6.0, as appropriate for the release line in use. Until upgraded, limit BACnet/IP access to trusted networks and avoid exposing the demo server.

fixed in 1.4.4, 1.5.1, 1.6.0

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.
no
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
–
agent run time
1h 12m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-11-12 20:05Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
–
Δ to kevAttacks confirmed in the real world.
–

outcome

Contextual, not validated: no deterministic check could cover this one, and no technique passed our review.

source signals

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

  1. 2026-11-12 20:05Z
    cve_org: trigger signal, started the run

this entry in the feed

GET /api/v1/feed/CVE-2026-47711

{
  "etk_id": "ETK-2026-4314",
  "cve_id": "CVE-2026-47711",
  "display_id": "CVE-2026-47711",
  "ghsa_id": "GHSA-vrpm-9gm2-x552",
  "euvd_id": "EUVD-2026-124672",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Stack buffer overflow in bacnet-stack demo server",
  "summary": "Affected bacnet-stack demo server releases contain a stack buffer overflow. A remote party that can reach the BACnet/IP service may crash the server; the affected demo server must be deployed and network-accessible.",
  "mitigation": "Upgrade bacnet-stack to 1.4.4, 1.5.1, or 1.6.0, as appropriate for the release line in use. Until upgraded, limit BACnet/IP access to trusted networks and avoid exposing the demo server.",
  "vendor": "bacnet-stack",
  "product": "bacnet-stack",
  "affected": [
    {
      "affected_notes": [
        "< =1.6.0-rc1"
      ],
      "affected_ranges": [],
      "ecosystem": null,
      "fixed_versions": [
        "1.4.4",
        "1.5.1",
        "1.6.0"
      ],
      "package_name": null,
      "purl": null
    }
  ],
  "cwes": [
    121
  ],
  "cvss_score": 8.6,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 71.55463233333333,
  "t0_at": "2026-11-12T20:05:20.110000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-11-12T20:05:20.110000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-12T20:05:20.110000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-47711"
    }
  }
}

published 2026-11-12 20:28Z
last change 2026-11-13 03:16Z

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