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CVE-2025-53787 is an information disclosure vulnerability affecting Microsoft 365 Copilot BizChat. Public reporting describes the issue as involving improper neutralization of special elements used in a command (CWE-77), indicating that insufficient sanitization of user-supplied input may allow crafted input within the BizChat context to be interpreted by an underlying system component as a command or command-like instruction. Successful exploitation could result in unauthorized disclosure of sensitive business data processed through Microsoft 365 Copilot BizChat. Public technical details remain limited: as of the cited reporting, no exploit code, exploitation flow, root-cause specifics, affected version list, or vulnerable configuration details had been publicly disclosed.
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No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
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5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability affecting Microsoft cloud services; details are not provided beyond Microsoft stating no customer action is required.
A vulnerability in Microsoft 365 Copilot BizChat that could expose sensitive business data to unauthorized parties, described as involving improper neutralization of special elements used in a command.
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.