EUVD-2026-48457

Deserialization of untrusted data in M365 Copilot allows an authorized attacker to execute code over a network...

CVE-2026-50517 Microsoft M365 Copilot Remote Code Execution Vulnerability

...

CVE-2026-50517 Microsoft M365 Copilot Remote Code Execution Vulnerability

...

CVE-2026-50517

CVE-2026-50517 describes a deserialization vulnerability in Microsoft 365 Copilot (M365 Copilot) that enables an authorized attacker to execute code over the network. The issue is triggered by deserializing untrusted data, with a critical CVSS v3.1 score (9.9, CRITICAL) and a network attack vecto...

PT-2026-64203

Name of the Vulnerable Software and Affected Versions Microsoft M365 Copilot affected versions not specified Description Deserialization of untrusted data allows an authorized attacker to execute code over a network. Deserialization is the process of converting a data stream back into an object,...

CVE-2026-58617 M365 Copilot for iOS Elevation of Privilege Vulnerability

...

Forg365 PhaaS Targets Microsoft 365 with Device Code and AitM Session Theft

A new phishing-as-a-service PhaaS operation called Forg365 is using a combination of device code phishing, adversary-in-the-middle AitM tactics, antibot evasion, artificial intelligence AI-assisted lure creation, and post-compromise mailbox operations targeting Microsoft 365 accounts. Distributed...

Misconfigured Server Reveals Three Evilginx Phishing Operations Targeting Microsoft 365

An attacker running a live Microsoft 365 phishing operation left a Python web server listening on a public port with directory listing switched on. The command that did it: python3 -m http.server 8080, was still sitting in the readable .bashhistory. From that one lapse, French security firm Lexfo...

DEBULL Tooling Abuses Microsoft Device-Code Flow to Target M365 Accounts

A Microsoft 365 device code phishing campaign has been observed leveraging collaboration-themed lures to take control of victim accounts between the last week of June 2026 and into early July, per findings from ZeroBEC. "The campaign did not depend on a fake Microsoft password page. It used a...

EUVD-2026-41445

Url redirection to untrusted site 'open redirect' in M365 Copilot allows an unauthorized attacker to elevate privileges over a network...

CVE-2026-41106

Url redirection to untrusted site 'open redirect' in M365 Copilot allows an unauthorized attacker to elevate privileges over a network...

CVE-2026-41106

Technical details for CVE-2026-41106 are not publicly available in the provided documents. Monitor for updates from vendors and security feeds.

CVE-2026-41106

Url redirection to untrusted site 'open redirect' in M365 Copilot allows an unauthorized attacker to elevate privileges over a network...

CVE-2026-41106 Microsoft 365 Copilot Elevation of Privilege Vulnerability

...

Microsoft 365 Copilot Elevation of Privilege Vulnerability

Url redirection to untrusted site 'open redirect' in M365 Copilot allows an unauthorized attacker to elevate privileges over a network...

KLA91128 PE vulnerability in Microsoft Apps

Privilege escalation vulnerability was found in Microsoft Apps. Malicious users can exploit this vulnerability to gain privileges. Original advisories CVE-2026-41106 Exploitation Related products Microsoft-365 CVE list CVE-2026-41106 unknown Solution Install necessary updates from the KB section,...

PT-2026-55318

Name of the Vulnerable Software and Affected Versions M365 Copilot affected versions not specified Description M365 Copilot contains an open redirect issue, which occurs when an application redirects users to an untrusted external site. This flaw allows an unauthorized attacker to elevate...

CVE-2026-11374

In ManageEngine ADSelfService Plus, RecoveryManager Plus, M365 Manager Plus, and ADAudit Plus, the SSO tickets generated to authenticate that session could be predicted by an unauthenticated user, leading to account takeover...

PT-2026-51487

Name of the Vulnerable Software and Affected Versions ADSelfService Plus versions prior to 6529 RecoveryManager Plus versions prior to 6321 M365 Manager Plus versions prior to 4817 ADAudit Plus versions prior to 8703 Description In ADSelfService Plus, RecoveryManager Plus, M365 Manager Plus, and...

Microsoft 365 Copilot Command Injection Vulnerability (CNVD-2026-26512)

Microsoft 365 Copilot is an AI assistant integrated into the Microsoft 365 office suite. It offers features such as intelligent writing, data analysis, and content generation. Microsoft 365 Copilot has a command injection vulnerability. This vulnerability arises from the failure to properly...