CVE-2026-86325

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

GHSA-gf54-rrcc-vgxp ↗EUVD-2026-91371 ↗

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.
Moxa MGate MB3170 Series >= 1.0, <= 4.7
CWE-121 Stack-based Buffer Overflow
ETK-2026-327, permanent identifier
10d 09h 29msince last run
18mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = trigger signal
trigger signal (cve.org) +0hwaiting for further signals+207h11m
0
+2h
+4h
+6h
+8h
+10h

description

MGate MB3170 and MB3270 Series gateways are affected in their web-based account-management function. A read-only user authenticated to the management interface may cause memory corruption, potentially exposing device data, changing memory contents, or interrupting service.

mitigation

Restrict web-management access to trusted administrators and remove or disable read-only accounts where operationally feasible. Apply a vendor update when available; no fixed release is recorded.

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, low privileges
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
0.34%25th percentile
agent run time
18m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-02 10:18Z
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: 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. 2026-10-02 10:18Z
    cve_org: trigger signal, started the run

this entry in the feed

GET /api/v1/feed/CVE-2026-86325

{
  "etk_id": "ETK-2026-327",
  "cve_id": "CVE-2026-86325",
  "display_id": "CVE-2026-86325",
  "ghsa_id": "GHSA-gf54-rrcc-vgxp",
  "euvd_id": "EUVD-2026-91371",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Stack buffer overflow in MGate MB3170/MB3270 account management",
  "summary": "MGate MB3170 and MB3270 Series gateways are affected in their web-based account-management function. A read-only user authenticated to the management interface may cause memory corruption, potentially exposing device data, changing memory contents, or interrupting service.",
  "mitigation": "Restrict web-management access to trusted administrators and remove or disable read-only accounts where operationally feasible. Apply a vendor update when available; no fixed release is recorded.",
  "vendor": "Moxa",
  "product": "MGate MB3170 Series",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 1.0, <= 4.7"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "MGate MB3170 Series",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 1.0, <= 4.7"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "MGate MB3270 Series",
      "purl": null
    }
  ],
  "cwes": [
    121
  ],
  "cvss_score": 9.4,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
  "epss_score": 0.0034,
  "epss_percentile": 0.2588,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 18.27749235,
  "t0_at": "2026-10-02T10:18:29.907000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-02T10:18:29.907000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-02T10:18:29.907000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-86325"
    }
  }
}

published 2026-10-02 11:03Z
last change 2026-10-21 05:31Z

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