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CVE-2026-26133

⚠️ high
🔍 Scan for this CVE
Summary

AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.

CVSS Score
7.1
High
EPSS Score
0.1
Exploit Probability
Published Date
2026-03-16
First Seen: 2026-03-17
📊 Relative Risk Intelligence

This CVE is Moderate Risk - more severe than 53.4% of all 321,566 vulnerabilities in our database.

#149,865
Above average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: Mar 16, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Partial
Limited system impact
SSVC data provided by CISA
Last Modified 2026-04-09
Source NVD 🔗
CVSS Vector 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
CWE IDs (Weakness Types)
CWE-77

📦 Affected Products 17

Vendor Product Status Affected Versions
microsoft excel Affected
< 16.0.19822.20038
microsoft excel Affected
< 2.106.2
microsoft onenote Affected
< 16.0.19725.20142
microsoft onenote Affected
v-
microsoft outlook Affected
< 5.2605.0
microsoft outlook Affected
v-
microsoft powerpoint Affected
< 16.0.19822.20038
microsoft powerpoint Affected
< 2.106.2
microsoft word Affected
< 16.0.19822.20038
microsoft word Affected
< 2.106.2
microsoft edge Affected
< 145.3800.99
microsoft teams Affected
< 1.0.0.2026043102
microsoft teams Affected
< 8.3.1
microsoft power_bi Affected
< 2.2.260210.21290750
microsoft power_bi Affected
v-
microsoft 365_copilot Affected
< 16.0.19815.10000
microsoft 365_copilot Affected
< 2.107.2

🔗 References 1

https://msrc.microsoft.com/update-guide/vulnerabilit...
Vendor Advisory

🔗 Related CVEs 6

CVE ID Severity CVSS EPSS Summary Published
CVE-2026-42832 ⚠️ high 7.7 0.1 Improper access control in Microsoft Office allows an unauthorized attacker to perform spoofing locally. 2026-05-12
CVE-2026-40359 ⚠️ high 7.8 0.1 Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. 2026-05-12
CVE-2026-40360 ⚠️ high 7.8 0.1 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally. 2026-05-12
CVE-2026-40362 ⚠️ high 7.8 0.1 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. 2026-05-12
CVE-2026-41102 ⚠️ high 7.1 0.0 Improper access control in Microsoft Office PowerPoint allows an authorized attacker to perform spoofing locally. 2026-05-12
CVE-2026-40421 🔶 medium 4.3 0.1 External control of file name or path in Microsoft Office Word allows an unauthorized attacker to disclose information o... 2026-05-12
These CVEs affect the same products