Vulnerabilities
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Critical (9+)
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CVSS
EPSS
| CVE | CVSS | EPSS | Vendor, product | Description | Modified |
|---|---|---|---|---|---|
| CVE-2026-50517 | 9.9 critical | 2.0% | microsoft, 365_copilot | Deserialization of untrusted data in M365 Copilot allows an authorized attacker to execute code over a network. | Sat 24 Oct |
| CVE-2026-85885 | 9.9 critical | 1.0% | microsoft, microsoft 365 copilot | Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an authorized attacker to elevate privileges over a network. | Mon 26 Oct |
| CVE-2026-58617 | 9.8 critical | 1.0% | microsoft, 365_copilot | Improper access control in Microsoft 365 Copilot for iOS allows an unauthorized attacker to elevate privileges over a network. | Sat 24 Oct |
| CVE-2026-41106 | 9.3 critical | 1.0% | microsoft, 365_copilot | Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network. | Sun 25 Oct |
| CVE-2026-59864 | 9.3 critical | 1.0% | no CPE yet | Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.32.5, `kiota plugin add` and `kiota plugin generate` (with `-t APIPlugin`) emitted attacker-controlled static_template.file values from x-ai-adaptive-card and x-ai-capabilities into generated Microsoft 365 Copilot and Teams plugin manifests without path validation, allowing ../, absolute, rooted, UNC, Windows drive, or URI paths in response_semantics.static_template.file to cause path traversal or out-of-package file inclusion when the generated plugin was deployed. This issue is fixed in version 1.29.1 and 1.32.5. | Sat 24 Oct |
| CVE-2025-59272 | 9.3 critical | 1.0% | microsoft, 365_copilot_chat | Improper neutralization of special elements used in a command ('command injection') in Copilot allows an unauthorized attacker to perform information disclosure locally. | 8 Oct |
| CVE-2025-59286 | 9.3 critical | 1.0% | microsoft, 365_copilot_chat | Improper neutralization of special elements used in a command ('command injection') in Copilot allows an unauthorized attacker to disclose information over a network. | 8 Oct |
| CVE-2026-47645 | 8.8 high | 1.0% | microsoft, 365_copilot | Url redirection to untrusted site ('open redirect') in Microsoft 365 Copilot's Business Chat allows an unauthorized attacker to elevate privileges over a network. | Sun 25 Oct |
| CVE-2026-78501 | 8.6 high | 1.0% | microsoft, 365_copilot_chat | Improper neutralization of special elements used in a command ('command injection') in Microsoft 365 Copilot's Business Chat allows an unauthorized attacker to disclose information over a network. | 14 Oct |
| CVE-2025-59227 | 7.8 high | 1.0% | microsoft, 365_apps, 365_copilot, office | Use after free in Microsoft Office allows an unauthorized attacker to execute code locally. | 18 Oct |
| CVE-2025-59234 | 7.8 high | 1.0% | microsoft, 365_apps, 365_copilot, office | Use after free in Microsoft Office allows an unauthorized attacker to execute code locally. | 18 Oct |
| CVE-2025-62199 | 7.8 high | 1.0% | microsoft, 365_apps, 365_copilot, excel | Use after free in Microsoft Office allows an unauthorized attacker to execute code locally. | 18 Oct |
| CVE-2026-26129 | 7.5 high | 1.0% | microsoft, 365_copilot_chat | Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network. | Mon 26 Oct |
| CVE-2026-26164 | 7.5 high | 1.0% | microsoft, 365_copilot_chat | Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network. | Mon 26 Oct |
| CVE-2026-54130 | 7.5 high | 1.0% | microsoft, 365_copilot | Missing authentication for critical function in M365 Copilot allows an unauthorized attacker to disclose information over a network. | Mon 26 Oct |
| CVE-2026-42895 | 7.5 high | 1.0% | microsoft, 365_copilot | Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to perform tampering over a network. | Sun 25 Oct |
| CVE-2026-33102 | 9.3 critical | 0.00% | microsoft, 365_copilot | Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network. | Mon 26 Oct |
| CVE-2026-40363 | 8.4 high | 0.00% | microsoft, 365_apps, 365_copilot, office | Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally. | Mon 26 Oct |
| CVE-2026-42831 | 7.8 high | 0.00% | microsoft, 365_copilot, office, office_long_term_servicing_channel | Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally. | Mon 26 Oct |
| CVE-2026-50387 | 7.8 high | 0.00% | microsoft, 365_copilot, microsoft_365, office_2021 | Stack-based buffer overflow in Windows GDI allows an authorized attacker to elevate privileges locally. | 14 Oct |
| CVE-2025-62557 | 7.8 high | 0.00% | microsoft, 365_apps, 365_copilot, office | Use after free in Microsoft Office allows an unauthorized attacker to execute code locally. | 14 Oct |
| CVE-2026-41614 | 6.2 medium | 0.00% | microsoft, 365_copilot | Improper access control in M365 Copilot for Desktop allows an unauthorized attacker to perform spoofing locally. | Mon 26 Oct |
| CVE-2026-41100 | 4.4 medium | 0.00% | microsoft, 365_copilot | Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally. | Mon 26 Oct |
23 of 23
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EPSS scores: 2026-10-28. NVD cursor: 2026-10-29 00:22. The News page shows only notable CVEs (KEV, your stack, new criticals, EPSS over 50%, or active exploitation per SSVC); this table has all of them.