CVE-2026-26133 (GCVE-0-2026-26133)
Vulnerability from cvelistv5 – Published: 2026-03-13 21:10 – Updated: 2026-06-19 18:18
VLAI
EPSS
VEX
Title
M365 Copilot Information Disclosure Vulnerability
Summary
AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-16 14:24 UTC
CWE
- CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
20 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Microsoft | Microsoft 365 Copilot for Android |
Affected:
1.0 , < 16.0.19815.10000
(custom)
|
guessed | |
| Microsoft | Microsoft 365 Copilot for iOS |
Affected:
1.0 , < 2.107.2
(custom)
|
guessed | |
| Microsoft | Microsoft Edge for Android |
Affected:
1.0.0 , < 145.3800.99
(custom)
|
guessed | |
| Microsoft | Microsoft Edge for iOS |
Affected:
1.0.0.0 , < 145.3800.99
(custom)
|
guessed | |
| Microsoft | Microsoft Excel for Android |
Affected:
16.0.0.0 , < 16.0.19822.20038
(custom)
|
guessed | |
| Microsoft | Microsoft Excel for iOS |
Affected:
1.0 , < 2.106.26020617
(custom)
|
guessed | |
| Microsoft | Microsoft Loop for iOS |
Affected:
2.0.0 , < 2.106.26020617
(custom)
|
guessed | |
| Microsoft | Microsoft OneNote |
Affected:
1.0.0 , < 2.106.26020617
(custom)
|
guessed | |
| Microsoft | Microsoft OneNote for Android |
Affected:
16.0.1 , < 16.0.19725.20142
(custom)
|
guessed | |
| Microsoft | Microsoft Outlook for Android |
Affected:
1.0 , < 5.2605
(custom)
|
guessed | |
| Microsoft | Microsoft Outlook for iOS |
Affected:
1.0.0 , < 5.2605
(custom)
|
guessed | |
| Microsoft | Microsoft Outlook for Mac |
Affected:
1.0.0 , < 5.2605
(custom)
|
guessed | |
| Microsoft | Microsoft PowerBI for Android |
Affected:
2.0.0 , < 2.2.260210.21290750
(custom)
|
guessed | |
| Microsoft | Microsoft PowerBI for iOS |
Affected:
1.0.0 , < 1.2.260302.2193910
(custom)
|
guessed | |
| Microsoft | Microsoft PowerPoint for Android |
Affected:
16.0.0.0 , < 16.0.19822.20038
(custom)
|
guessed | |
| Microsoft | Microsoft PowerPoint for iOS |
Affected:
1.0 , < 2.106.26020617
(custom)
|
guessed | |
| Microsoft | Microsoft Teams for Android |
Affected:
1.0.0 , < 1.0.0.2026043102
(custom)
|
guessed | |
| Microsoft | Microsoft Teams for iOS |
Affected:
2.0.0 , < 8.3.1
(custom)
|
guessed | |
| Microsoft | Microsoft Word for Android |
Affected:
16.0.0.0 , < 16.0.19822.20038
(custom)
|
guessed | |
| Microsoft | Microsoft Word for iOS |
Affected:
2.0.0 , < 2.106.26020617
(custom)
|
guessed |
Date Public
2026-03-12 14:00
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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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