What is CVE-2026-7531?

CVE-2026-7531 is a security advisory published by Microsoft Security Response Center (MSRC) with Low severity. Use-after-free in PQC hybrid key-share handling

Which CVE IDs does CVE-2026-7531 cover?

CVE-2026-7531 covers the following CVE IDs: CVE-2026-7531. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-7531?

CVE-2026-7531 has a CVSS v3 base score of 9.8, published by Microsoft Security Response Center (MSRC).

CVE-2026-7531LowCVSS 9.8

Use-after-free in PQC hybrid key-share handling

Vendor

Microsoft Security Response Center (MSRC)

Published

July 1, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-7531 →