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Critical 1 vendor · 1 advisory

CVE-2026-56191

Unified cross-vendor view: this CVE is referenced by 1 tracked vendor. Each vendor rates and fixes it independently — confirm the impact for your specific products below.

NVD detail CVE.org

MS Server1 advisory

Critical10.0Microsoft Exchange Online Tampering VulnerabilityJul 24, 2026

CVE-2026-56191 — critical severity, 1 vendor affected | VulniPulse