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CVE-2026-33111

Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability

Published: May 7, 2026Updated: May 14, 2026 Sources: CVE List NVD BDUCWE-77
7.5HIGH
NVD MITRE
EPSS Score
1.1%
Top 37.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

Improper neutralization of special elements used in a command ('command injection') in Copilot Chat (Microsoft Edge) allows an unauthorized attacker to disclose information over a network.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-77

Affected Products

Microsoft Corp
commercial·USaka Microsoft, microsoft corporation
Microsoft EdgeOn-premDesktop App
Consumer Software / browser
Copilot Chat (Microsoft Edge)On-prem
Operating Systems / windows
copilot chatOn-prem
Operating Systems / windows

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33111
msrc.microsoft.com
News mentions
1

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