What is CVE-2026-70455?

CVE-2026-70455 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. rsync 3.4.2 \u003c 3.5.0 DoS via --zt Zstandard Compression Thread Exhaustion

Which CVE IDs does CVE-2026-70455 cover?

CVE-2026-70455 covers the following CVE IDs: CVE-2026-70455. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-70455?

CVE-2026-70455 has a CVSS v3 base score of 7.5, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-70455?

CVE-2026-70455 affects 1 product, including: azl3 rsync 3.4.3-1 on Azure Linux 3.0.

CVE-2026-70455HighCVSS 7.5

rsync 3.4.2 < 3.5.0 DoS via --zt Zstandard Compression Thread Exhaustion

Vendor

Microsoft Security Response Center (MSRC)

Published

August 23, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-70455 →

🎯 Affected products1

azl3 rsync 3.4.3-1 on Azure Linux 3.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 3.5.0-1

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70455
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade