What is CVE-2026-6678?

CVE-2026-6678 is a security advisory published by Microsoft Security Response Center (MSRC) with Low severity. Integer underflow in wc_PKCS7_DecryptOri handling crafted Other Recipient Info

Which CVE IDs does CVE-2026-6678 cover?

CVE-2026-6678 covers the following CVE IDs: CVE-2026-6678. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-6678?

CVE-2026-6678 has a CVSS v3 base score of 5.3, published by Microsoft Security Response Center (MSRC).

CVE-2026-6678LowCVSS 5.3

Integer underflow in wc_PKCS7_DecryptOri handling crafted Other Recipient Info

Vendor

Microsoft Security Response Center (MSRC)

Published

July 1, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-6678 →