Command Injection Information Disclosure in Microsoft 365 Copilot
CVE-2025-59286 is a spoofing vulnerability in Microsoft 365 Copilot caused by improper neutralization of special elements used in a command. The provided content explicitly describes this as a command injection issue in Copilot that allows an unauthorized attacker to disclose information over a network. Based on the available information, the flaw arises from insufficient sanitization or neutralization of attacker-controlled input before it is incorporated into a command-processing context within Copilot. No specific vulnerable function, component path, or protocol details are provided in the source content.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
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Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
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.
Recent activity
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
The version that knows your environment.
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.