CVE-2026-47297 Deserialization of untrusted data in SQL Server allows an unauthorized attacker to execute code over a network

Description

Deserialization of untrusted data in SQL Server allows an unauthorized attacker to execute code over a network.

Affected products and versions

Product	Affected versions	Fixed in
Microsoft SQL Server 2019 (CU 32) 15.0	15.0.0.0 → < 15.0.4490.9	15.0.4490.9
Microsoft SQL Server 2019 (GDR) 15.0	15.0.0 → < 15.0.2190.7	15.0.2190.7
Microsoft SQL Server 2022 (CU 26) 16.0	16.0.0.0 → < 16.0.4275.2	16.0.4275.2
Microsoft SQL Server 2022 (GDR) 16.0	16.0.0 → < 16.0.1200.5	16.0.1200.5
Microsoft SQL Server 2022 for x64-based Systems (CU 25) 16.0	16.0.4260.1 → < 16.0.4262.2	16.0.4262.2
Microsoft SQL Server 2025 (CU 6) 17.0	earliest → < 17.0.4060.2	17.0.4060.2
Microsoft SQL Server 2025 (CU8) 17.0	17.0.0.0 → < 17.0.4085.5	17.0.4085.5
Microsoft SQL Server 2025 for x64-based Systems (GDR) 17.0	17.0.1050.2 → < 17.0.1135.8	17.0.1135.8

Other CVEs of Microsoft SQL Server 2019 (CU 32)

The 71 CVEs of Microsoft SQL Server 2019 (CU 32) →

CVE-2026-77481 Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network 8.8 High CVE-2026-67645 Out-of-bounds read in SQL Server allows an authorized attacker to disclose information over a network 6.5 Medium CVE-2026-67624 Out-of-bounds read in SQL Server allows an authorized attacker to disclose information over a network 6.5 Medium CVE-2026-66819 Improper neutralization of special elements used in an sql command ('sql injection') in SQL Server allows an… 8.8 High