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CVE-2026-96888

CVE-2026-96888

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

EUVD-2026-107255 ↗

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.
ISC BIND 9 >= 9.16.0, <= 9.18.50; >= 9.20.0, <= 9.20.29; >= 9.21.0, <= 9.21.26; >= 9.16.8-S1, <= 9.18.50-S1; >= 9.20.9-S1, <= 9.20.29-S1
CWE-476 NULL Pointer Dereference
ETK-2026-2322Zero's internal tracking ID, independent of the CVE number., permanent identifier
cvss7.5cna vendorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1h 23msince last run
51mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = cve.org publication
trigger signal (cve.org) +0hwaiting for further signals+1h45m
0
+4h
+6h
+8h
+10h
+12h

description

Affected BIND 9 resolvers can stop serving DNS after an assertion failure when redirect-zone processing occurs. An unauthenticated remote party may cause a denial of service if the resolver has both a redirect zone and strict QNAME minimization enabled.

mitigation

Disable strict QNAME minimization or remove the redirect zone where operationally feasible. Track the vendor's update guidance before re-enabling both settings, as no fixed version is recorded in the supplied advisory data.

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.
–
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
51m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-21 12:46Z
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

No artifact: an exploit or check was attempted but could not be produced at this moment.

source signals

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

  1. 2026-10-21 12:46Z
    cve_org: trigger signal, started the run
    https://www.cve.org/CVERecord?id=CVE-2026-96888

this entry in the feed

GET /api/v1/feed/CVE-2026-96888

{
  "etk_id": "ETK-2026-2322",
  "cve_id": "CVE-2026-96888",
  "display_id": "CVE-2026-96888",
  "ghsa_id": null,
  "euvd_id": "EUVD-2026-107255",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Assertion-failure denial of service in ISC BIND 9",
  "summary": "Affected BIND 9 resolvers can stop serving DNS after an assertion failure when redirect-zone processing occurs. An unauthenticated remote party may cause a denial of service if the resolver has both a redirect zone and strict QNAME minimization enabled.",
  "mitigation": "Disable strict QNAME minimization or remove the redirect zone where operationally feasible. Track the vendor's update guidance before re-enabling both settings, as no fixed version is recorded in the supplied advisory data.",
  "vendor": "ISC",
  "product": "BIND 9",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 9.16.0, <= 9.18.50",
        ">= 9.20.0, <= 9.20.29",
        ">= 9.21.0, <= 9.21.26",
        ">= 9.16.8-S1, <= 9.18.50-S1",
        ">= 9.20.9-S1, <= 9.20.29-S1"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "BIND 9",
      "purl": null
    }
  ],
  "cwes": [
    476
  ],
  "cvss_score": 7.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 51.417383083333334,
  "t0_at": "2026-10-21T12:46:17.594000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-21T12:46:17.594000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-21T12:46:17.594000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-96888"
    }
  }
}

published 2026-10-21 13:39Z
last change 2026-10-21 15:37Z

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