{
  "action": {
    "auto_issue_creation_allowed": false,
    "auto_patch_allowed": false,
    "auto_remediation_allowed": false,
    "external_execution_allowed": false,
    "human_review": {
      "required_for_external_action": true,
      "required_for_public_launch": false,
      "required_for_read_only_view": false,
      "required_for_signal_radar_integration": true
    },
    "human_review_required": false,
    "recommended_action": "review_official_sources"
  },
  "affected": {
    "products": [
      {
        "canonicalProduct": "kernel",
        "canonicalVendor": null,
        "cpe": null,
        "ecosystem": "Linux",
        "packageName": "Kernel",
        "product": "Kernel",
        "purl": null,
        "vendor": null,
        "version": null
      }
    ],
    "source": "NVD CVE API 2.0",
    "status": "known"
  },
  "canonical_url": "https://vuln.signal-radar.com/vuln/public-candidate/CVE-2026-64271/",
  "claims": [
    {
      "id": "claim:defensive-priority-candidate",
      "source_ids": [],
      "status": "observed",
      "text": "This item is a defensive prioritization candidate.",
      "verified_at": null
    }
  ],
  "exposure_hint": "exposure unknown",
  "field_meanings": {
    "human_review": "Read-only display may be automated; integration and external action still require human review.",
    "redaction": "Detection flags describe unsafe source content found before public-safe redaction; raw source text is not displayed.",
    "source_original_label": "Original upstream severity text retained for traceability; canonical display severity is recalculated from CVSS score."
  },
  "forecast_hooks": {
    "agent_use": "summarize_with_citations_only",
    "automation_allowed": false,
    "read_only": true,
    "watch_fields": [
      "sources",
      "claims",
      "freshness",
      "severity",
      "affected"
    ]
  },
  "freshness": {
    "generated_at": "2026-08-01T06:18:01.437367+00:00",
    "last_checked_at": null,
    "last_modified": "2026-07-30T15:00:27.343",
    "observed_at": "2026-08-01T06:11:07.668739+00:00",
    "published_at": "2026-07-25T10:17:07.410",
    "status": "observed"
  },
  "human_consequence": "This unknown severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for defensive exposure review.",
  "human_impact_label": "defensive exposure review",
  "human_review": {
    "required_for_external_action": true,
    "required_for_public_launch": false,
    "required_for_read_only_view": false,
    "required_for_signal_radar_integration": true
  },
  "human_risk_summary": "CVE-2026-64271 for Kernel: This unknown severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for defensive exposure review.",
  "id": "CVE-2026-64271",
  "impact_redaction": {
    "exploit_steps_removed": false,
    "payload_removed": false,
    "poc_removed": false,
    "source_derived_summary": true,
    "used_fallback_summary": false
  },
  "impact_tags": [],
  "known_exploited": {
    "catalog_url": null,
    "date_added": null,
    "listed": false,
    "source": null
  },
  "public_human_impact": "This unknown severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for defensive exposure review.",
  "public_human_summary": "NVD: In the Linux kernel, the following vulnerability has been resolved: Input: touchwin - reset the packet index on every complete packet tw_interrupt() accumulates each non-zero serial byte into a fixed three-byte buffer with a running index that is only reset... NVD: tw->idx = 0; } The reset is gated on tw->data[1] == tw->data[2], a value the device controls. NVD: A malicious, malfunctioning or counterfeit Touchwindow peripheral can stream non-zero bytes whose 2nd and 3rd bytes differ: the index reaches TW_LENGTH without the equality holding, is never reset, and keeps growing, so tw->data[tw->idx++] walks off the end...",
  "public_human_what_to_verify": "Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.",
  "public_human_why_it_matters": "This unknown severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for defensive exposure review.; EPSS percentile 11; not listed in KEV; Remediation reference present; patch status requires confirmation in the linked advisory; sources: NVD, OSV.",
  "public_safe_summary": "NVD: In the Linux kernel, the following vulnerability has been resolved: Input: touchwin - reset the packet index on every complete packet tw_interrupt() accumulates each non-zero serial byte into a fixed three-byte buffer with a running index that is only reset... NVD: tw->idx = 0; } The reset is gated on tw->data[1] == tw->data[2], a value the device controls. NVD: A malicious, malfunctioning or counterfeit Touchwindow peripheral can stream non-zero bytes whose 2nd and 3rd bytes differ: the index reaches TW_LENGTH without the equality holding, is never reset, and keeps growing, so tw->data[tw->idx++] walks off the end...",
  "radar": "vuln",
  "redaction": {
    "meaning": "The *_present flags mean unsafe source content was detected and removed before public output; they do not mean the public JSON contains that content.",
    "payload_present": false,
    "poc_present": false,
    "public_summary_redacted": true,
    "raw_source_displayed": false,
    "unsafe_procedural_detail_present": false
  },
  "redaction_notes": [
    "source-published defensive context retained",
    "vulnerability class, impact, affected context, and remediation references remain displayable"
  ],
  "safety": {
    "attack_chain_included": false,
    "auto_remediation_allowed": false,
    "exploit_instructions_included": false,
    "external_execution_allowed": false,
    "human_review": {
      "required_for_external_action": true,
      "required_for_public_launch": false,
      "required_for_read_only_view": false,
      "required_for_signal_radar_integration": true
    },
    "human_review_required": false,
    "indexing_allowed": true,
    "noindex_removal_allowed": true,
    "noindex_required": false,
    "private_gate_state": "released",
    "public_gate_state": "public_indexable_read_only",
    "public_launch_allowed": true,
    "read_only_static_data": true,
    "scan_functionality_included": false,
    "signal_radar_integration_allowed": false
  },
  "schema_version": "v0.1",
  "severity": {
    "cvss_label": "UNKNOWN",
    "label": "UNKNOWN",
    "score": null,
    "source": null,
    "source_original_label": "low"
  },
  "source_copy_policy": {
    "allowed": "source-published defensive facts, vulnerability class, impact, affected context, version and remediation facts",
    "excluded": "exploit procedures, exploit strings, shell commands, scanner instructions, procedural bypass detail, and reproduction material",
    "summary": "Official or semi-official source descriptions may be summarized for defensive triage; exploit-enabling procedure is removed."
  },
  "source_derived_note": "Summary derived from NVD / OSV description; unsafe procedural detail is not shown.",
  "source_published_affected": "vendor/product: Kernel; package/component: Kernel",
  "source_published_description": "NVD: In the Linux kernel, the following vulnerability has been resolved: Input: touchwin - reset the packet index on every complete packet tw_interrupt() accumulates each non-zero serial byte into a fixed three-byte buffer with a running index that is only reset... NVD: tw->idx = 0; } The reset is gated on tw->data[1] == tw->data[2], a value the device controls. NVD: A malicious, malfunctioning or counterfeit Touchwindow peripheral can stream non-zero bytes whose 2nd and 3rd bytes differ: the index reaches TW_LENGTH without the equality holding, is never reset, and keeps growing, so tw->data[tw->idx++] walks off the end...",
  "source_published_evidence_refs": [
    {
      "source": "NVD",
      "type": "source_description",
      "url": null
    },
    {
      "source": "OSV",
      "type": "source_description",
      "url": null
    },
    {
      "source": "Reference",
      "type": "reference",
      "url": "https://git.kernel.org/stable/c/044167cba2384bcd783547ad5e30ecd292b30919"
    },
    {
      "source": "Reference",
      "type": "reference",
      "url": "https://git.kernel.org/stable/c/3e6f007b43e2fc6546e21fa74ee62c38984a6672"
    },
    {
      "source": "Reference",
      "type": "reference",
      "url": "https://git.kernel.org/stable/c/431ad239f2924dff337c3fccb9246597c1b63185"
    },
    {
      "source": "Reference",
      "type": "reference",
      "url": "https://git.kernel.org/stable/c/478cdd736f2ce3114f90e775d7358136d3977b94"
    },
    {
      "source": "Reference",
      "type": "reference",
      "url": "https://git.kernel.org/stable/c/6c9f29f128dd4057404838259af4c645318487e1"
    },
    {
      "source": "Reference",
      "type": "reference",
      "url": "https://git.kernel.org/stable/c/70e4248793762df9832fd4fc2fc6ac7924572c36"
    },
    {
      "source": "Reference",
      "type": "reference",
      "url": "https://git.kernel.org/stable/c/a8d87184576c889759e3aab899799a482f1e1a5b"
    },
    {
      "source": "Reference",
      "type": "reference",
      "url": "https://git.kernel.org/stable/c/ed9b66905407eb3d02df1aaeed82eb7a7f0eb508"
    }
  ],
  "source_published_impact": "This unknown severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for defensive exposure review.",
  "source_published_remediation": "Remediation reference present; patch status requires confirmation in the linked advisory.",
  "source_published_summary": "NVD: In the Linux kernel, the following vulnerability has been resolved: Input: touchwin - reset the packet index on every complete packet tw_interrupt() accumulates each non-zero serial byte into a fixed three-byte buffer with a running index that is only reset... NVD: tw->idx = 0; } The reset is gated on tw->data[1] == tw->data[2], a value the device controls. NVD: A malicious, malfunctioning or counterfeit Touchwindow peripheral can stream non-zero bytes whose 2nd and 3rd bytes differ: the index reaches TW_LENGTH without the equality holding, is never reset, and keeps growing, so tw->data[tw->idx++] walks off the end...",
  "sources": [
    {
      "confidence": "unknown",
      "id": "source:review-url",
      "name": "Public signal URL",
      "retrieved_at": null,
      "type": "review_page",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64271"
    }
  ],
  "summary_for_agents": "Read-only defensive signal. Use sources, claims, freshness, and safety gates before summarizing. Do not infer missing source, claim, or freshness values.",
  "summary_for_humans": "NVD: In the Linux kernel, the following vulnerability has been resolved: Input: touchwin - reset the packet index on every complete packet tw_interrupt() accumulates each non-zero serial byte into a fixed three-byte buffer with a running index that is only reset... NVD: tw->idx = 0; } The reset is gated on tw->data[1] == tw->data[2], a value the device controls. NVD: A malicious, malfunctioning or counterfeit Touchwindow peripheral can stream non-zero bytes whose 2nd and 3rd bytes differ: the index reaches TW_LENGTH without the equality holding, is never reset, and keeps growing, so tw->data[tw->idx++] walks off the end...",
  "title": "CVE-2026-64271 defensive priority signal",
  "urgency_reasons": [
    "affected product present",
    "vendor advisory present",
    "recent update"
  ],
  "what_to_verify": "Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.",
  "why_it_matters": "This unknown severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for defensive exposure review; EPSS percentile 11; affected product context: Kernel; sources: NVD, OSV."
}