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CVE-2026-65772 is a deserialization-of-untrusted-data vulnerability in Microsoft Dynamics 365, including Dynamics 365 Server deployments. An authorized attacker with low privileges can send a crafted request over the network to trigger unsafe deserialization and execute code in the affected Dynamics 365 environment. The vulnerability is rated CVSS 8.8 with network attack vector, low attack complexity, no user interaction, and high confidentiality, integrity, and availability impact.
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What an attacker gets, and what they’ve been doing with it.
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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.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-impact Microsoft Dynamics 365 Server vulnerability associated with CWE-502 (deserialization of untrusted data) and CWE-94 (improper control of code generation/code injection). Its CVSS vector indicates network reachability, low attack complexity, required low privileges, no user interaction, and high confidentiality, integrity, and availability impact.
An insecure deserialization vulnerability in Microsoft Dynamics 365 that permits an authorized attacker to execute code remotely over a network.
A Microsoft Dynamics 365 deserialization-of-untrusted-data vulnerability that allows an authorized network attacker to execute code. The supplied CVSS v3.1 vector is AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, indicating low attack complexity, required low privileges, no user interaction, and high impact to confidentiality, integrity, and availability.
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.