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CVE-2026-100222

CVE-2026-100222

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

GHSA-7rxx-ff72-65fr ↗EUVD-2026-100336 ↗

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.
Microsoft Windows 10 Version 1607 >= 10.0.14393.0, < 10.0.14393.9612; >= 10.0.17763.0, < 10.0.17763.9376; >= 10.0.19044.0, < 10.0.19044.7807; >= 10.0.19045.0, < 10.0.19044.7807; >= 10.0.22631.0, < 10.0.22631.7652; >= 10.0.26100.0, < 10.0.26100.9711; >= 10.0.26200.0, < 10.0.26200.9711; >= 10.0.28000.0, < 10.0.28000.3231; >= 10.0.26300.0, < 10.0.26300.9711; >= 6.2.9200.0, < 6.2.9200.26434; >= 6.3.9600.0, < 6.3.9600.23470; >= 10.0.20348.0, < 10.0.20348.5761; >= 10.0.26100.0, < 10.0.26100.33650
fixed in 10.0.14393.9612, 10.0.17763.9376, 10.0.19044.7807, 10.0.22631.7652, 10.0.26100.9711, 10.0.26200.9711, 10.0.28000.3231, 10.0.26300.9711, 6.2.9200.26434, 6.3.9600.23470, 10.0.20348.5761, 10.0.26100.33650
CWE-122 Heap-based Buffer Overflow
ETK-2026-1498Zero's internal tracking ID, independent of the CVE number., permanent identifier
cvss9.8cna vendorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
6d 07h 22msince last run
24mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = cve.org publication
trigger signal (cve.org) +0hwaiting for further signals+27h22m
0
+2h
+4h
+6h
+8h
+10h

description

Network Policy Server (NPS) on the listed Windows and Windows Server releases contains a heap buffer overflow. An unauthenticated attacker who can connect to the NPS service may be able to run code on the affected system.

mitigation

Update affected systems to the applicable fixed build: 10.0.14393.9612, 10.0.17763.9376, 10.0.19044.7807, 10.0.22631.7652, 10.0.26100.9711, 10.0.26200.9711, 10.0.28000.3231, 10.0.26300.9711, 6.2.9200.26434, 6.3.9600.23470, 10.0.20348.5761, or 10.0.26100.33650, according to the installed release. Until patched, limit NPS network access to required trusted clients.

fixed in 10.0.14393.9612, 10.0.17763.9376, 10.0.19044.7807, 10.0.22631.7652, 10.0.26100.9711, 10.0.26200.9711, 10.0.28000.3231, 10.0.26300.9711, 6.2.9200.26434, 6.3.9600.23470, 10.0.20348.5761, 10.0.26100.33650

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.
0.96%60th percentile
agent run time
24m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-13 19:01Z
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. 2026-10-13 19:01Z
    cve_org: trigger signal, started the run
    https://www.cve.org/CVERecord?id=CVE-2026-100222

this entry in the feed

GET /api/v1/feed/CVE-2026-100222

{
  "etk_id": "ETK-2026-1498",
  "cve_id": "CVE-2026-100222",
  "display_id": "CVE-2026-100222",
  "ghsa_id": "GHSA-7rxx-ff72-65fr",
  "euvd_id": "EUVD-2026-100336",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Network Policy Server heap buffer overflow",
  "summary": "Network Policy Server (NPS) on the listed Windows and Windows Server releases contains a heap buffer overflow. An unauthenticated attacker who can connect to the NPS service may be able to run code on the affected system.",
  "mitigation": "Update affected systems to the applicable fixed build: 10.0.14393.9612, 10.0.17763.9376, 10.0.19044.7807, 10.0.22631.7652, 10.0.26100.9711, 10.0.26200.9711, 10.0.28000.3231, 10.0.26300.9711, 6.2.9200.26434, 6.3.9600.23470, 10.0.20348.5761, or 10.0.26100.33650, according to the installed release. Until patched, limit NPS network access to required trusted clients.",
  "vendor": "Microsoft",
  "product": "Windows 10 Version 1607",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 10.0.14393.0, < 10.0.14393.9612"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "10.0.14393.9612"
      ],
      "package_name": "Windows 10 Version 1607",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 10.0.17763.0, < 10.0.17763.9376"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "10.0.17763.9376"
      ],
      "package_name": "Windows 10 Version 1809",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 10.0.19044.0, < 10.0.19044.7807"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "10.0.19044.7807"
      ],
      "package_name": "Windows 10 Version 21H2",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 10.0.19045.0, < 10.0.19044.7807"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "10.0.19044.7807"
      ],
      "package_name": "Windows 10 Version 22H2",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 10.0.22631.0, < 10.0.22631.7652"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "10.0.22631.7652"
      ],
      "package_name": "Windows 11 version 23H2",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 10.0.22631.0, < 10.0.22631.7652"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "10.0.22631.7652"
      ],
      "package_name": "Windows 11 Version 23H2",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 10.0.26100.0, < 10.0.26100.9711"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "10.0.26100.9711"
      ],
      "package_name": "Windows 11 Version 24H2",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 10.0.26200.0, < 10.0.26200.9711"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "10.0.26200.9711"
      ],
      "package_name": "Windows 11 Version 25H2",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 10.0.28000.0, < 10.0.28000.3231"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "10.0.28000.3231"
      ],
      "package_name": "Windows 11 version 26H1",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 10.0.26300.0, < 10.0.26300.9711"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "10.0.26300.9711"
      ],
      "package_name": "Windows 11 Version 26H2",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 6.2.9200.0, < 6.2.9200.26434"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "6.2.9200.26434"
      ],
      "package_name": "Windows Server 2012",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 6.2.9200.0, < 6.2.9200.26434"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "6.2.9200.26434"
      ],
      "package_name": "Windows Server 2012 (Server Core installation)",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 6.3.9600.0, < 6.3.9600.23470"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "6.3.9600.23470"
      ],
      "package_name": "Windows Server 2012 R2",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 6.3.9600.0, < 6.3.9600.23470"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "6.3.9600.23470"
      ],
      "package_name": "Windows Server 2012 R2 (Server Core installation)",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 10.0.14393.0, < 10.0.14393.9612"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "10.0.14393.9612"
      ],
      "package_name": "Windows Server 2016",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 10.0.14393.0, < 10.0.14393.9612"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "10.0.14393.9612"
      ],
      "package_name": "Windows Server 2016 (Server Core installation)",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 10.0.17763.0, < 10.0.17763.9376"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "10.0.17763.9376"
      ],
      "package_name": "Windows Server 2019",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 10.0.17763.0, < 10.0.17763.9376"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "10.0.17763.9376"
      ],
      "package_name": "Windows Server 2019 (Server Core installation)",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 10.0.20348.0, < 10.0.20348.5761"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "10.0.20348.5761"
      ],
      "package_name": "Windows Server 2022",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 10.0.26100.0, < 10.0.26100.33650"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "10.0.26100.33650"
      ],
      "package_name": "Windows Server 2025",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 10.0.26100.0, < 10.0.26100.33650"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "10.0.26100.33650"
      ],
      "package_name": "Windows Server 2025 (Server Core installation)",
      "purl": null
    }
  ],
  "cwes": [
    122
  ],
  "cvss_score": 9.8,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
  "epss_score": 0.0096,
  "epss_percentile": 0.6087,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 23.502687133333332,
  "t0_at": "2026-10-13T19:01:31.812000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-13T19:01:31.812000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-13T19:01:31.812000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-100222"
    }
  }
}

published 2026-10-13 19:53Z
last change 2026-10-21 04:45Z

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