Use-after-free in DoH stream cleanup code path

Mariner

Read the vendor bulletin Get alerts for azl3 unbound 1.26.0-1 on Azure Linux

5.9CVSS out of 10Medium severity

Scope

What the vendor says is affected

azl3 unbound 1.26.0-1 on Azure Linux 3.0

Next step

What the vendor recommends

See the Microsoft Security Update Guide for the update that applies to your product.

Review the complete instructions on the vendor's site

Timeline

When this advisory changed

Sep 17, 2026 at 1:16 AM UTC
Published by Microsoft Security Response Center
The publication date reported by the vendor.
Sep 17, 2026 at 10:05 AM UTC
Added to SecurityAlert
We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2026-82720View CVSS, KEV, EPSS, and threat context

Source

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Vendor: Microsoft Security Response Center
Advisory ID: CVE-2026-82720
Last source check: Sep 17, 2026 at 4:10 PM UTC

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Your environment

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Test the update or mitigation through your normal change process.

Watch azl3 unbound 1.26.0-1 on Azure Linux

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What the vendor says is affected

What the vendor recommends

When this advisory changed

CVEs named in this advisory

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