What’s Vulnerable › Vulnerabilities

CVE-2026-77903: Microsoft Dataverse Elevation of Privilege Vulnerability

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-17 · updated 2026-10-31
• Weakness: CWE-290

Description

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

Affected products

• Microsoft Dataverse: all versions
• Microsoft Dataverse: all versions

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77903

Get alerted when CVE-2026-77903 or the next vulnerability affects your stack