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Microsoft Security Response CenterCVE-2026-31503

udp: Fix wildcard bind conflict check when using hash2

Mariner

Read the vendor bulletin Get alerts for azl3 kernel 6.6.130.1-3 on Azure Linux
5.5CVSS out of 10Medium severity
Scope

What the vendor says is affected

  • azl3 kernel 6.6.130.1-3 on Azure Linux 3.0
  • cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0

Versions the vendor lists as fixed

  • 6.6.134.1-2
Next step

What the vendor recommends

CBL-Mariner Releases

Review the complete instructions on the vendor's site
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2026-31503View CVSS, KEV, EPSS, and threat context
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