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High 7.1Published Mar 16, 2026
CVE-2026-26133AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.
Updated under an hour ago ()
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It affects microsoft 365_copilot and 9 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.
- CVSS
- 7.1 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
- Weakness (CWE)
- CWE-77
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
microsoft 365_copilot microsoft:365_copilot | before 2.107.2; before 16.0.19815.10000 | NVD |
microsoft edge microsoft:edge | before 145.3800.99; before 145.3800.99 | NVD |
microsoft excel microsoft:excel | before 2.106.2; before 16.0.19822.20038 | NVD |
microsoft loop microsoft:loop | before 2.106 | NVD |
microsoft onenote microsoft:onenote | before 16.0.19725.20142; all versions | NVD |
microsoft outlook microsoft:outlook | before 5.2605.0; before 5.2605.0; all versions | NVD |
microsoft power_bi microsoft:power_bi | before 2.2.260210.21290750; all versions | NVD |
microsoft powerpoint microsoft:powerpoint | before 2.106.2; before 16.0.19822.20038 | NVD |
microsoft teams microsoft:teams | before 1.0.0.2026043102; before 8.3.1 | NVD |
microsoft word microsoft:word | before 2.106.2; before 16.0.19822.20038 | NVD |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26133vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.