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    7 vulnerabilities found for Microsoft 365 Copilot's Business Chat by Microsoft

    CVE-2026-26129 (GCVE-0-2026-26129)

    Vulnerability from cvelistv5 – Published: 2026-05-07 20:58 – Updated: 2026-06-19 16:13 Exclusively Hosted Service
    VLAI
    Title
    M365 Copilot Information Disclosure Vulnerability
    Summary
    Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-138 - Improper Neutralization of Special Elements
    Assigner
    References
    Impacted products
    Date Public
    2026-05-07 14:00
    Show details on NVD website
    To clipboard 

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    CVE-2026-26164 (GCVE-0-2026-26164)

    Vulnerability from cvelistv5 – Published: 2026-05-07 20:58 – Updated: 2026-06-19 16:13 Exclusively Hosted Service
    VLAI
    Title
    M365 Copilot Information Disclosure Vulnerability
    Summary
    Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
    Assigner
    References
    Impacted products
    Date Public
    2026-05-07 14:00
    Show details on NVD website
    To clipboard 

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    CVE-2026-26137 (GCVE-0-2026-26137)

    Vulnerability from cvelistv5 – Published: 2026-03-19 21:06 – Updated: 2026-06-19 18:18 Exclusively Hosted Service
    VLAI
    Title
    Microsoft Exchange Elevation of Privilege Vulnerability
    Summary
    Server-side request forgery (ssrf) in Microsoft Exchange allows an authorized attacker to elevate privileges over a network.
    Severity
    9.9 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L/E:U/RL:O/RC:C
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-918 - Server-Side Request Forgery (SSRF)
    Assigner
    References
    Impacted products
    Date Public
    2026-03-19 14:00
    Show details on NVD website
    To clipboard 

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    CVE-2025-59286 (GCVE-0-2025-59286)

    Vulnerability from cvelistv5 – Published: 2025-10-09 21:04 – Updated: 2026-02-26 17:47 Exclusively Hosted Service
    VLAI
    Title
    Copilot Information Disclosure Vulnerability
    Summary
    Improper neutralization of special elements used in a command ('command injection') in Copilot allows an unauthorized attacker to disclose information over a network.
    Severity
    9.3 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N/E:U/RL:O/RC:C
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
    Assigner
    References
    Impacted products
    Date Public
    2025-10-09 14:00
    Show details on NVD website
    To clipboard 

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    CVE-2025-59272 (GCVE-0-2025-59272)

    Vulnerability from cvelistv5 – Published: 2025-10-09 21:04 – Updated: 2026-02-26 17:47 Exclusively Hosted Service
    VLAI
    Title
    Copilot Information Disclosure Vulnerability
    Summary
    Improper neutralization of special elements used in a command ('command injection') in Copilot allows an unauthorized attacker to perform information disclosure locally.
    Severity
    9.3 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N/E:U/RL:O/RC:C
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
    Assigner
    References
    Impacted products
    Date Public
    2025-10-09 14:00
    Show details on NVD website
    To clipboard 

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    CVE-2025-53787 (GCVE-0-2025-53787)

    Vulnerability from cvelistv5 – Published: 2025-08-07 21:01 – Updated: 2026-02-26 17:49 Exclusively Hosted Service
    VLAI
    Title
    Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
    Summary
    Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
    Severity
    8.2 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
    Assigner
    References
    Impacted products
    Date Public
    2025-08-07 07:00
    Show details on NVD website
    To clipboard 

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    CVE-2025-53774 (GCVE-0-2025-53774)

    Vulnerability from cvelistv5 – Published: 2025-08-07 21:01 – Updated: 2026-02-26 17:49 Exclusively Hosted Service
    VLAI
    Title
    Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
    Summary
    Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
    Severity
    6.5 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
    Assigner
    References
    Impacted products
    Date Public
    2025-08-07 07:00
    Show details on NVD website
    To clipboard 

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