CVE-2026-94300

waiting for further signals

EUVD-2026-107254 ↗

no check availablenot proven exploitable

cve.orgpublic pockev

ISC BIND 9 >= 9.11.0, <= 9.18.50; >= 9.20.0, <= 9.20.29; >= 9.21.0, <= 9.21.26; >= 9.11.3-S1, <= 9.18.50-S1; >= 9.20.9-S1, <= 9.20.29-S1

CWE-415 Double Free

ETK-2026-2321, permanent identifier

cvss8.1cna vendorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

1h 40msince last run

35mAI analysis

timeline

0 = cve.org publication

trigger signal (cve.org) +0hwaiting for further signals+0h54m

+2h

+4h

+6h

+8h

+10h

+12h

description

Affected ISC BIND 9 releases include the listed 9.11, 9.18, 9.20, 9.21, and S1 branch ranges. An attacker who has observed a GSS-TSIG UDP message before its key expires, and can query an attacker-controlled zone, may corrupt named memory and potentially run code.

mitigation

Disable GSS-TSIG on affected named instances where it is not required, and restrict DNS access and zone operations to trusted peers. No corrected version is recorded; monitor ISC BIND updates and upgrade when a fixed release is identified.

check

exploit

automation

–

auth required

EPSS

–

agent run time

35m

cve.org record, t = 0

2026-10-21 12:45Z

Δ to public poc

–

Δ to kev

–

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.

2026-10-21 12:45Z
cve_org: trigger signal, started the run
https://www.cve.org/CVERecord?id=CVE-2026-94300

this entry in the feed

GET /api/v1/feed/CVE-2026-94300

{
  "etk_id": "ETK-2026-2321",
  "cve_id": "CVE-2026-94300",
  "display_id": "CVE-2026-94300",
  "ghsa_id": null,
  "euvd_id": "EUVD-2026-107254",
  "status": "published",
  "anchor_state": "anchored",
  "title": "GSS-TSIG replay memory corruption in ISC BIND 9",
  "summary": "Affected ISC BIND 9 releases include the listed 9.11, 9.18, 9.20, 9.21, and S1 branch ranges. An attacker who has observed a GSS-TSIG UDP message before its key expires, and can query an attacker-controlled zone, may corrupt named memory and potentially run code.",
  "mitigation": "Disable GSS-TSIG on affected named instances where it is not required, and restrict DNS access and zone operations to trusted peers. No corrected version is recorded; monitor ISC BIND updates and upgrade when a fixed release is identified.",
  "vendor": "ISC",
  "product": "BIND 9",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 9.11.0, <= 9.18.50",
        ">= 9.20.0, <= 9.20.29",
        ">= 9.21.0, <= 9.21.26",
        ">= 9.11.3-S1, <= 9.18.50-S1",
        ">= 9.20.9-S1, <= 9.20.29-S1"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "BIND 9",
      "purl": null
    }
  ],
  "cwes": [
    415
  ],
  "cvss_score": 8.1,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 34.852648183333336,
  "t0_at": "2026-10-21T12:45:26.540000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-21T12:45:26.540000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-21T12:45:26.540000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-94300"
    }
  }
}

published 2026-10-21 13:04Z
last change 2026-10-21 15:05Z

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