What is CVE-2026-55967?

CVE-2026-55967 is a security advisory published by Microsoft Security Response Center (MSRC) with Low severity. AES-GCM streaming APIs do not reject \u003e64 GiB cumulative single messages, enabling counter wrap and keystream reuse

Which CVE IDs does CVE-2026-55967 cover?

CVE-2026-55967 covers the following CVE IDs: CVE-2026-55967. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-55967?

CVE-2026-55967 has a CVSS v3 base score of 7.5, published by Microsoft Security Response Center (MSRC).

CVE-2026-55967LowCVSS 7.5

AES-GCM streaming APIs do not reject >64 GiB cumulative single messages, enabling counter wrap and keystream reuse

Vendor

Microsoft Security Response Center (MSRC)

Published

July 1, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-55967 →