FKIE_CVE-2026-26133
Vulnerability from fkie_nvd - Published: 2026-03-16 14:18 - Updated: 2026-06-17 10:25
Severity
Summary
AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.
References
| URL | Tags | ||
|---|---|---|---|
| secure@microsoft.com | https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26133 | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| microsoft | 365_copilot | * | |
| microsoft | 365_copilot | * | |
| microsoft | edge | * | |
| microsoft | edge | * | |
| microsoft | excel | * | |
| microsoft | excel | * | |
| microsoft | loop | * | |
| microsoft | onenote | * | |
| microsoft | onenote | - | |
| microsoft | outlook | * | |
| microsoft | outlook | * | |
| microsoft | outlook | - | |
| microsoft | power_bi | * | |
| microsoft | power_bi | - | |
| microsoft | powerpoint | * | |
| microsoft | powerpoint | * | |
| microsoft | teams | * | |
| microsoft | teams | * | |
| microsoft | word | * | |
| microsoft | word | * |
{
"affected": [
{
"affectedData": [
{
"product": "Microsoft 365 Copilot for Android",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.0.19815.10000",
"status": "affected",
"version": "1.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft 365 Copilot for iOS",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "2.107.2",
"status": "affected",
"version": "1.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Edge for Android",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "145.3800.99",
"status": "affected",
"version": "1.0.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Edge for iOS",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "145.3800.99",
"status": "affected",
"version": "1.0.0.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Excel for Android",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.0.19822.20038",
"status": "affected",
"version": "16.0.0.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Excel for iOS",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "2.106.26020617",
"status": "affected",
"version": "1.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Loop for iOS",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "2.106.26020617",
"status": "affected",
"version": "2.0.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft OneNote",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "2.106.26020617",
"status": "affected",
"version": "1.0.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft OneNote for Android",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.0.19725.20142",
"status": "affected",
"version": "16.0.1",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Outlook for Android",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "5.2605",
"status": "affected",
"version": "1.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Outlook for iOS",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "5.2605",
"status": "affected",
"version": "1.0.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Outlook for Mac",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "5.2605",
"status": "affected",
"version": "1.0.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft PowerBI for Android",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "2.2.260210.21290750",
"status": "affected",
"version": "2.0.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft PowerBI for iOS",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "1.2.260302.2193910",
"status": "affected",
"version": "1.0.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft PowerPoint for Android",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.0.19822.20038",
"status": "affected",
"version": "16.0.0.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft PowerPoint for iOS",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "2.106.26020617",
"status": "affected",
"version": "1.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Teams for Android",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "1.0.0.2026043102",
"status": "affected",
"version": "1.0.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Teams for iOS",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "8.3.1",
"status": "affected",
"version": "2.0.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Word for Android",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.0.19822.20038",
"status": "affected",
"version": "16.0.0.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Word for iOS",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "2.106.26020617",
"status": "affected",
"version": "2.0.0",
"versionType": "custom"
}
]
}
],
"source": "secure@microsoft.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:365_copilot:*:*:*:*:*:iphone_os:*:*",
"matchCriteriaId": "236E57A2-4772-4C84-9AA5-E623FC2F547E",
"versionEndExcluding": "2.107.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:365_copilot:*:*:*:*:*:android:*:*",
"matchCriteriaId": "7AEBF186-6FE1-4808-B812-A55DFFB629B3",
"versionEndExcluding": "16.0.19815.10000",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:edge:*:*:*:*:*:android:*:*",
"matchCriteriaId": "096B9A15-8DA4-4DC2-A2D7-70FB7D50A578",
"versionEndExcluding": "145.3800.99",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:edge:*:*:*:*:*:iphone_os:*:*",
"matchCriteriaId": "70EE133F-A117-4F41-85E7-E3E29E6598F3",
"versionEndExcluding": "145.3800.99",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:excel:*:*:*:*:*:iphone_os:*:*",
"matchCriteriaId": "D3D0FC9C-4FF7-48D2-B6B5-C0F631B1A07F",
"versionEndExcluding": "2.106.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:excel:*:*:*:*:*:android:*:*",
"matchCriteriaId": "6C12366E-9991-4265-9939-904BFE430989",
"versionEndExcluding": "16.0.19822.20038",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:loop:*:*:*:*:*:iphone_os:*:*",
"matchCriteriaId": "1766DBAA-0153-438F-BD60-73381334AB11",
"versionEndExcluding": "2.106",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:onenote:*:*:*:*:*:android:*:*",
"matchCriteriaId": "67CB78F7-2EBE-4657-8AB8-33F7CA0D1A58",
"versionEndExcluding": "16.0.19725.20142",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:onenote:-:*:*:*:*:iphone_os:*:*",
"matchCriteriaId": "C473D8B1-69DA-4252-9A99-603CE3344D1D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:outlook:*:*:*:*:*:android:*:*",
"matchCriteriaId": "2FBAA043-3D54-4970-A074-717A31C54D63",
"versionEndExcluding": "5.2605.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:outlook:*:*:*:*:*:iphone_os:*:*",
"matchCriteriaId": "6401B00C-BB0F-434F-B777-5A2ED4E55CF6",
"versionEndExcluding": "5.2605.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:outlook:-:*:*:*:*:macos:*:*",
"matchCriteriaId": "287DF1D6-0949-4AB3-8AB3-625CE745218A",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:power_bi:*:*:*:*:*:android:*:*",
"matchCriteriaId": "5E95BF2F-3ED5-47EA-AFF2-739E19E3F185",
"versionEndExcluding": "2.2.260210.21290750",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:power_bi:-:*:*:*:*:iphone_os:*:*",
"matchCriteriaId": "231BEECA-EECC-4F9F-A274-155F88C0DB13",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:powerpoint:*:*:*:*:*:iphone_os:*:*",
"matchCriteriaId": "92DE0FB6-FD20-4838-9110-1639534C85D5",
"versionEndExcluding": "2.106.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:powerpoint:*:*:*:*:*:android:*:*",
"matchCriteriaId": "432B5138-77FA-4282-944C-822842E55852",
"versionEndExcluding": "16.0.19822.20038",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:teams:*:*:*:*:*:android:*:*",
"matchCriteriaId": "723599DE-2621-4A05-840B-97394B6B0895",
"versionEndExcluding": "1.0.0.2026043102",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:teams:*:*:*:*:*:iphone_os:*:*",
"matchCriteriaId": "E90345E3-4412-46BE-9F5F-10C679F5B5FB",
"versionEndExcluding": "8.3.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:word:*:*:*:*:*:iphone_os:*:*",
"matchCriteriaId": "E3303015-2B25-4344-9F27-9257707AEA1F",
"versionEndExcluding": "2.106.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:word:*:*:*:*:*:android:*:*",
"matchCriteriaId": "90BE21AE-F476-4520-A9BA-7ECF36CC977D",
"versionEndExcluding": "16.0.19822.20038",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network."
},
{
"lang": "es",
"value": "La inyecci\u00f3n de comandos de IA en M365 Copilot permite a un atacante no autorizado divulgar informaci\u00f3n a trav\u00e9s de una red."
}
],
"id": "CVE-2026-26133",
"lastModified": "2026-06-17T10:25:47.033",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 4.2,
"source": "secure@microsoft.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-26133",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-16T14:24:19.473896Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-03-16T14:18:26.337",
"references": [
{
"source": "secure@microsoft.com",
"tags": [
"Vendor Advisory"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26133"
}
],
"sourceIdentifier": "secure@microsoft.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-77"
}
],
"source": "secure@microsoft.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-77"
}
],
"source": "nvd@nist.gov",
"type": "Secondary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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