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CVE-2024-38094 is a high-severity remote code execution vulnerability in on-premises Microsoft SharePoint caused by deserialization of untrusted data. Microsoft describes the flaw as allowing an authenticated attacker with Site Owner permissions to inject arbitrary code and execute it in the context of SharePoint Server. The issue affects SharePoint Enterprise Server 2016, SharePoint Server 2019, and SharePoint Server Subscription Edition on x64 systems prior to the fixed builds published by Microsoft in July 2024. Public reporting also indicates that proof-of-concept exploit code is available and that exploitation has been observed in the wild, including use of crafted payloads to trigger code execution and deploy web shells.
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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.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Microsoft SharePoint deserialization remote code execution vulnerability mentioned only in related content.
A Microsoft vulnerability that CISA KEV’s knownRansomwareCampaignUse field silently flipped to Known during 2025 (evidence of ransomware campaign use).
A prior critical SharePoint deserialization vulnerability referenced for historical context.
A previous Microsoft SharePoint deserialization vulnerability that the content states was actively exploited by ransomware groups.
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.