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CVE-2026-94300ImportantNetworkRevised 5 Nov

Concurrent GSS-TSIG messages corrupt memory

MSRC advisory NVD CVE.org

Assessment

Severity
Important
CVSS base score
8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact
Not stated
EPSS · 30-day forecast
No EPSS score collected
Public detection template
No Nuclei template is listed in the current collected catalog
Exploitation detected
Unknown: not stated by MSRC
Exploitability
Not assessed
Publicly disclosed
Unknown: not stated by MSRC
Customer action
Required: follow the MSRC remediation guidance
Component
Mariner
Weakness
CWE-415: Double Free
Issued by
isc
Published
30 Oct 2026 · October 2026
Last revised
5 Nov 2026Information published.
CVSS 3.1 base metricsRed raises the risk · green lowers it
Attack vector
NetworkAV:N
Attack complexity
HighAC:H
Privileges required
NonePR:N
User interaction
NoneUI:N
Scope
UnchangedS:U
Confidentiality
HighC:H
Integrity
HighI:H
Availability
HighA:H

Updates that fix it

0 KBs

No KB listed

No KB update is listed in the collected MSRC record. Check the MSRC advisory for product releases and other remedies.

Affected products

Open Source Software
3 affected products
  • azl3 bind 9.20.26-1 on Azure Linux 3.0
  • azl3 bind 9.20.29-1 on Azure Linux 3.0
  • azl3 bind 9.20.30-1 on Azure Linux 3.0

What changed

  1. Detection template: Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  2. Detection template: No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  3. Affected products: azl3 bind 9.20.26-1 on Azure Linux 3.0, azl3 bind 9.20.29-1 on Azure Linux 3.0 → azl3 bind 9.20.26-1 on Azure Linux 3.0, azl3 bind 9.20.29-1 on Azure Linux 3.0, azl3 bind 9.20.30-1 on Azure Linux 3.0
  4. Detection template: Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  5. Detection template: No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  6. Affected products: azl3 bind 9.20.26-1 on Azure Linux 3.0 → azl3 bind 9.20.26-1 on Azure Linux 3.0, azl3 bind 9.20.29-1 on Azure Linux 3.0
Page history

Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.

Cite this version
Field-level log (20)

Up to 100 recent field edits are shown; older edits may be outside retention.

  1. 6 Nov 2026 · 17:32:22 UTC Public detection templateUnknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  2. 6 Nov 2026 · 17:32:22 UTC Source coverage: public-exploit-codeIncomplete → Current
  3. 6 Nov 2026 · 17:32:22 UTC Source coverage: first-epssIncomplete → Current
  4. 6 Nov 2026 · 17:32:22 UTC Source coverage: msrc-cvrfIncomplete → Current
  5. 6 Nov 2026 · 16:31:02 UTC Public detection templateNo Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  6. 6 Nov 2026 · 16:31:02 UTC Source coverage: public-exploit-codeCurrent → Incomplete
  7. 6 Nov 2026 · 16:31:02 UTC Source coverage: first-epssCurrent → Incomplete
  8. 6 Nov 2026 · 16:31:02 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  9. 6 Nov 2026 · 09:07:49 UTC Last revised1 Nov 2026 14:58 UTC → 5 Nov 2026 14:49 UTC
  10. 6 Nov 2026 · 09:07:49 UTC Affected productsazl3 bind 9.20.26-1 on Azure Linux 3.0, azl3 bind 9.20.29-1 on Azure Linux 3.0 → azl3 bind 9.20.26-1 on Azure Linux 3.0, azl3 bind 9.20.29-1 on Azure Linux 3.0, azl3 bind 9.20.30-1 on Azure Linux 3.0
  11. 2 Nov 2026 · 17:30:39 UTC Public detection templateUnknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  12. 2 Nov 2026 · 17:30:39 UTC Source coverage: public-exploit-codeIncomplete → Current
  13. 2 Nov 2026 · 17:30:39 UTC Source coverage: first-epssIncomplete → Current
  14. 2 Nov 2026 · 17:30:39 UTC Source coverage: msrc-cvrfIncomplete → Current
  15. 2 Nov 2026 · 16:27:39 UTC Public detection templateNo Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  16. 2 Nov 2026 · 16:27:39 UTC Source coverage: public-exploit-codeCurrent → Incomplete
  17. 2 Nov 2026 · 16:27:39 UTC Source coverage: first-epssCurrent → Incomplete
  18. 2 Nov 2026 · 16:27:39 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  19. 2 Nov 2026 · 09:04:36 UTC Last revised30 Oct 2026 01:02 UTC → 1 Nov 2026 14:58 UTC
  20. 2 Nov 2026 · 09:04:36 UTC Affected productsazl3 bind 9.20.26-1 on Azure Linux 3.0 → azl3 bind 9.20.26-1 on Azure Linux 3.0, azl3 bind 9.20.29-1 on Azure Linux 3.0

Explore global source statements, affected packages and advisory history for CVE-2026-94300. The catalog has a separate collection scope from Microsoft release records.

cve-program · CVE-2026-94300

Published

BIND 9

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "ISC",
                    "product": "BIND 9",
                    "versions": [
                        {
                            "version": "9.11.0",
                            "lessThanOrEqual": "9.18.50",
                            "status": "affected",
                            "versionType": "custom"
                        },
                        {
                            "version": "9.20.0",
                            "lessThanOrEqual": "9.20.29",
                            "status": "affected",
                            "versionType": "custom"
                        },
                        {
                            "version": "9.21.0",
                            "lessThanOrEqual": "9.21.26",
                            "status": "affected",
                            "versionType": "custom"
                        },
                        {
                            "version": "9.11.3-S1",
                            "lessThanOrEqual": "9.18.50-S1",
                            "status": "affected",
                            "versionType": "custom"
                        },
                        {
                            "version": "9.20.9-S1",
                            "lessThanOrEqual": "9.20.29-S1",
                            "status": "affected",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 8 Nov 06:21 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current

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