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CVE-2026-47297 is a Microsoft SQL Server remote code execution vulnerability caused by deserialization of untrusted data. An unauthenticated attacker can exploit the flaw remotely over a network to execute code. The vulnerability is rated CVSS v3.1 8.1 (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
19 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability addressed by the September 2026 Microsoft SQL Server security updates.
Unknown
A SQL Server insecure deserialization vulnerability that allows an unauthorized network-based attacker to execute code.
A network-reachable unsafe deserialization vulnerability in Microsoft SQL Server that can allow an unauthenticated attacker to execute code remotely. The supplied CVSS v3.1 vector indicates high attack complexity but no privileges or user interaction required, with high confidentiality, integrity, and availability impact.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.