CVE-2026-24307
9.3 · CRITICALOverview
CVE-2026-24307 is a critical-severity vulnerability affecting microsoft 365_copilot. It was published on January 22, 2026 and has a CVSS 3.1 base score of 9.3 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.3, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Improper validation of specified type of input in M365 Copilot allows an unauthorized attacker to disclose information over a network.
Remediation
Check the references section for vendor advisories and patches from microsoft. Update 365_copilot to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
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Frequently Asked Questions
What is CVE-2026-24307?
CVE-2026-24307 is a critical-severity vulnerability affecting microsoft 365_copilot. It was published on January 22, 2026 and has a CVSS 3.1 base score of 9.3 (CRITICAL).
How severe is CVE-2026-24307?
This vulnerability has a CVSS 3.1 base score of 9.3, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-24307?
Check the references section for vendor advisories and patches from microsoft. Update 365_copilot to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-24307?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-24307 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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