What is CVE-2026-35199?

CVE-2026-35199 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. SymCrypt SymCryptXmssSign function - Heap overflow via 64-\u003e32-bit leaf-count truncation

Which CVE IDs does CVE-2026-35199 cover?

CVE-2026-35199 covers the following CVE IDs: CVE-2026-35199. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-35199?

CVE-2026-35199 has a CVSS v3 base score of 6.1, published by Microsoft Security Response Center (MSRC).

CVE-2026-35199MediumCVSS 6.1

SymCrypt SymCryptXmssSign function - Heap overflow via 64->32-bit leaf-count truncation

Vendor

Microsoft Security Response Center (MSRC)

Published

June 2, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-35199 →