# M365 Copilot Information Disclosure Vulnerability CVE record · `CVE-2026-26133` - **Identifiers:** `CVE-2026-26133` - **State:** Confirmed - **Severity:** CVSS 7.1 High - **Critical:** No - **CNA:** microsoft - **Weakness (CWE):** [CWE-77](https://cwe.mitre.org/data/definitions/77.html) - **Tags:** [Command injection](https://agentprime.io/advisories/tag/command-injection.md) - **Technologies:** [Microsoft 365 Copilot for Android](https://agentprime.io/advisories/technology/microsoft-365-copilot-for-android.md) · [Microsoft 365 Copilot for iOS](https://agentprime.io/advisories/technology/microsoft-365-copilot-for-ios.md) · [Microsoft Edge for Android](https://agentprime.io/advisories/technology/microsoft-edge-for-android.md) · [Microsoft Edge for iOS](https://agentprime.io/advisories/technology/microsoft-edge-for-ios.md) · [Microsoft Excel for Android](https://agentprime.io/advisories/technology/microsoft-excel-for-android.md) · [Microsoft Excel for iOS](https://agentprime.io/advisories/technology/microsoft-excel-for-ios.md) · [Microsoft Loop for iOS](https://agentprime.io/advisories/technology/microsoft-loop-for-ios.md) · [Microsoft OneNote](https://agentprime.io/advisories/technology/microsoft-onenote.md) · [Microsoft OneNote for Android](https://agentprime.io/advisories/technology/microsoft-onenote-for-android.md) · [Microsoft Outlook for Android](https://agentprime.io/advisories/technology/microsoft-outlook-for-android.md) · [Microsoft Outlook for iOS](https://agentprime.io/advisories/technology/microsoft-outlook-for-ios.md) · [Microsoft Outlook for Mac](https://agentprime.io/advisories/technology/microsoft-outlook-for-mac.md) · [Microsoft PowerBI for Android](https://agentprime.io/advisories/technology/microsoft-powerbi-for-android.md) · [Microsoft PowerBI for iOS](https://agentprime.io/advisories/technology/microsoft-powerbi-for-ios.md) · [Microsoft PowerPoint for Android](https://agentprime.io/advisories/technology/microsoft-powerpoint-for-android.md) · [Microsoft PowerPoint for iOS](https://agentprime.io/advisories/technology/microsoft-powerpoint-for-ios.md) · [Microsoft Teams for Android](https://agentprime.io/advisories/technology/microsoft-teams-for-android.md) · [Microsoft Teams for iOS](https://agentprime.io/advisories/technology/microsoft-teams-for-ios.md) · [Microsoft Word for Android](https://agentprime.io/advisories/technology/microsoft-word-for-android.md) · [Microsoft Word for iOS](https://agentprime.io/advisories/technology/microsoft-word-for-ios.md) - **Published:** 13 Mar 2026 - **Updated:** 19 Jun 2026 - **Reviewed by a person:** No Published by the CVE Program (CNA: microsoft) at 13 Mar 2026, 21:10 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. ## Affected products, as the CNA wrote them - Vendor: Microsoft. Product: Microsoft 365 Copilot for Android. - affected: `1.0 to before 16.0.19815.10000` (custom) - Vendor: Microsoft. Product: Microsoft 365 Copilot for iOS. - affected: `1.0 to before 2.107.2` (custom) - Vendor: Microsoft. Product: Microsoft Edge for Android. - affected: `1.0.0 to before 145.3800.99` (custom) - Vendor: Microsoft. Product: Microsoft Edge for iOS. - affected: `1.0.0.0 to before 145.3800.99` (custom) - Vendor: Microsoft. Product: Microsoft Excel for Android. - affected: `16.0.0.0 to before 16.0.19822.20038` (custom) - Vendor: Microsoft. Product: Microsoft Excel for iOS. - affected: `1.0 to before 2.106.26020617` (custom) - Vendor: Microsoft. Product: Microsoft Loop for iOS. - affected: `2.0.0 to before 2.106.26020617` (custom) - Vendor: Microsoft. Product: Microsoft OneNote. - affected: `1.0.0 to before 2.106.26020617` (custom) - Vendor: Microsoft. Product: Microsoft OneNote for Android. - affected: `16.0.1 to before 16.0.19725.20142` (custom) - Vendor: Microsoft. Product: Microsoft Outlook for Android. - affected: `1.0 to before 5.2605` (custom) - Vendor: Microsoft. Product: Microsoft Outlook for iOS. - affected: `1.0.0 to before 5.2605` (custom) - Vendor: Microsoft. Product: Microsoft Outlook for Mac. - affected: `1.0.0 to before 5.2605` (custom) - Vendor: Microsoft. Product: Microsoft PowerBI for Android. - affected: `2.0.0 to before 2.2.260210.21290750` (custom) - Vendor: Microsoft. Product: Microsoft PowerBI for iOS. - affected: `1.0.0 to before 1.2.260302.2193910` (custom) - Vendor: Microsoft. Product: Microsoft PowerPoint for Android. - affected: `16.0.0.0 to before 16.0.19822.20038` (custom) - Vendor: Microsoft. Product: Microsoft PowerPoint for iOS. - affected: `1.0 to before 2.106.26020617` (custom) - Vendor: Microsoft. Product: Microsoft Teams for Android. - affected: `1.0.0 to before 1.0.0.2026043102` (custom) - Vendor: Microsoft. Product: Microsoft Teams for iOS. - affected: `2.0.0 to before 8.3.1` (custom) - Vendor: Microsoft. Product: Microsoft Word for Android. - affected: `16.0.0.0 to before 16.0.19822.20038` (custom) - Vendor: Microsoft. Product: Microsoft Word for iOS. - affected: `2.0.0 to before 2.106.26020617` (custom) ## Not analysed yet We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter. ## Severity and exploitation - 7.1 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C`, from CNA (microsoft) - **CISA KEV:** Not listed. - **EPSS:** 0.0045, the 39th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days. ## Timeline This record came from the full history of the CVE Program, published 13 Mar 2026. New records show when each source confirmed them. ## Sources - [CVE List: CVE-2026-26133](https://www.cve.org/CVERecord?id=CVE-2026-26133) - [NVD: CVE-2026-26133](https://nvd.nist.gov/vuln/detail/CVE-2026-26133) ### References from the CNA - (vendor-advisory, patch) Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description. ## Check whether this affects you This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run. - With the agentprime MCP server (), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: - As JSON: - Everything that needs attention now: --- The web page: . Everything for agents: .