What is CVE-2026-119197?

CVE-2026-119197 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. pyasn1: Quadratic-complexity denial of service in binary REAL decoding

Which CVE IDs does CVE-2026-119197 cover?

CVE-2026-119197 covers the following CVE IDs: CVE-2026-119197. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-119197?

CVE-2026-119197 has a CVSS v3 base score of 7.5, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-119197?

CVE-2026-119197 affects 1 product, including: azl3 python-pyasn1 0.4.8-3 on Azure Linux 3.0.

CVE-2026-119197HighCVSS 7.5

pyasn1: Quadratic-complexity denial of service in binary REAL decoding

Vendor

Microsoft Security Response Center (MSRC)

Published

October 31, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-119197 →

🎯 Affected products1

azl3 python-pyasn1 0.4.8-3 on Azure Linux 3.0

✅ Remediation

KBRelease Notes (Security Update)

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-119197
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade