CVE-2026-48581: Surface Broker SDMA Elevation of Privilege Vulnerability

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-14 · updated 2026-10-28
Weakness: CWE-1220

Description

Insufficient granularity of access control in Microsoft Surface allows an authorized attacker to elevate privileges locally.

Affected products

Microsoft Surface Go 2 1901 Firmware: all versions
Microsoft Surface Go 2 1926 Firmware: all versions
Microsoft Surface Go 2 1927 Firmware: all versions
Microsoft Surface Go 3 1901 Firmware: all versions
Microsoft Surface Go 3 1926 Firmware: all versions
Microsoft Surface Go 3 2022 Firmware: all versions
Microsoft Surface Hub 2S 85 Firmware: all versions
Microsoft Surface Hub 2S Firmware: all versions
Microsoft Surface Hub 3 50 Firmware: all versions
Microsoft Surface Hub 3 85 Firmware: all versions
Microsoft Surface Hub: all versions
Microsoft Surface Laptop 4 1950 Firmware: all versions
Microsoft Surface Laptop 4 1951 Firmware: all versions
Microsoft Surface Laptop 4 1952 Firmware: all versions
Microsoft Surface Laptop 4 1953 Firmware: all versions
Microsoft Surface Laptop 4 1958 Firmware: all versions
Microsoft Surface Laptop 4 1959 Firmware: all versions
Microsoft Surface Laptop 4 1978 Firmware: all versions
Microsoft Surface Laptop 4 1979 Firmware: all versions
Microsoft Surface Laptop Go 1943 Firmware: all versions
Microsoft Surface Laptop Go 2 2013 Firmware: all versions
Microsoft Surface Laptop Go 3 2013 Firmware: all versions
Microsoft Surface Pro 7+ 1960 Firmware: all versions
Microsoft Surface Pro 7+ With Lte Advanced 1961 Firmware: all versions
Microsoft Surface Pro 8 1983 Firmware: all versions
Microsoft Surface Pro 8 For Business 1983 Firmware: all versions
Microsoft Surface Pro 8 For Business With Lte Advanced 1982 Firmware: all versions
Microsoft Surface Go: all versions
Microsoft Surface Hub: all versions
Microsoft Surface Laptop Go: all versions

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48581

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