by Kastro
Paper/Archive/CVE-2026-77903

CVE-2026-77903

Microsoft Microsoft Dataverse — Microsoft Dataverse Elevation of Privilege Vulnerability

EPSS 0.4%CVSS 9.0
critical.is priorityof 100
33
CVSS 9.0 (CNA)9.0 / 10 × 3027.0Not in CISA KEV+300.0EPSS percentile 31.1.311 × 206.2No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Authentication bypass by spoofing in Microsoft Dataverse allows an unauthorized attacker to elevate privileges over a network.

Affected

ProductAffectedFixed inSource
Microsoft Dataverse-–CNA

Scores by source

microsoft (CNA)9.0CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

patchmsrc.microsoft.com/update-guide/vulnerability/CVE-2026-77903