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CVE-2026-24301: Microsoft Copilot Information Disclosure Vulnerability

highpublic exploitCVSS 8.8CVE-2026-24301
Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to disclose information over a network.

CSIRTS triage

vendor: Microsoftproduct: CopilotCode injectionInformation disclosure
What
Improper neutralization of special elements in a command allows an unauthorized attacker to inject commands and disclose information.
Who is affected
Users of Microsoft Copilot exposed to untrusted input.
Urgency
High severity with CVSS 8.8; command injection enabling unauthorized information disclosure demands rapid patching.
Action
Apply Microsoft security updates for CVE-2026-24301; disable or restrict Copilot access until patched if possible.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
high — CVSS 8.8
Published
2026-08-11
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24301

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-24301coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Microsoft Copilot Information

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

More from Microsoft Security Response Center