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Microsoft Security Response CenterCVE-2025-61729

Excessive resource consumption when printing error string for host certificate validation in crypto/x509

Mariner

Read the vendor bulletin Get alerts for azl3 golang 1.25.5-1 on Azure Linux
7.5CVSS out of 10High severity
Scope

What the vendor says is affected

  • azl3 golang 1.25.5-1 on Azure Linux 3.0
  • cbl2 msft-golang 1.24.13-1 on CBL Mariner 2.0
  • azl3 golang 1.26.0-1 on Azure Linux 3.0
  • azl3 golang 1.25.7-1 on Azure Linux 3.0
  • cbl2 msft-golang 1.25.8-1 on CBL Mariner 2.0
  • cbl2 golang 1.18.8-10 on CBL Mariner 2.0
  • cbl2 golang 1.22.7-5 on CBL Mariner 2.0
  • azl3 golang 1.23.12-1 on Azure Linux 3.0
  • azl3 golang 1.25.3-1 on Azure Linux 3.0
  • cbl2 gcc 11.2.0-8 on CBL Mariner 2.0
  • cbl2 msft-golang 1.24.9-1 on CBL Mariner 2.0
  • cbl2 msft-golang 1.24.11-1 on CBL Mariner 2.0
  • azl3 golang 1.25.6-1 on Azure Linux 3.0
  • cbl2 msft-golang 1.24.12-1 on CBL Mariner 2.0
  • azl3 golang 1.25.8-1 on Azure Linux 3.0
  • azl3 golang 1.25.9-1 on Azure Linux 3.0
  • azl3 golang 1.27.0-1 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

  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-2025-61729View CVSS, KEV, EPSS, and threat context
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