What is CVE-2026-61548?

CVE-2026-61548 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Rsyslog: mmpstrucdata stack buffer overflow with oversized RFC5424 structured data

Which CVE IDs does CVE-2026-61548 cover?

CVE-2026-61548 covers the following CVE IDs: CVE-2026-61548. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-61548?

CVE-2026-61548 has a CVSS v3 base score of 8.1, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-61548?

CVE-2026-61548 affects 1 product, including: azl3 rsyslog 8.2308.0-6 on Azure Linux 3.0.

CVE-2026-61548HighCVSS 8.1

Rsyslog: mmpstrucdata stack buffer overflow with oversized RFC5424 structured data

Vendor

Microsoft Security Response Center (MSRC)

Published

September 20, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-61548 →

🎯 Affected products1

azl3 rsyslog 8.2308.0-6 on Azure Linux 3.0

✅ Remediation

Security Update

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-61548
patchhttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade