Cavern C2 Uses DNS and Google Apps Script to Blend Into Legitimate Traffic

Cybersecurity researchers have traced the continued evolution of the Cavern aka Cav3rn command-and-control C2 framework used by Iranian nation-state hackers in attacks targeting entities in Israel. Russian cybersecurity company Kaspersky said its ongoing monitoring of the threat activity cluster...

PT-2026-70762

Name of the Vulnerable Software and Affected Versions Microsoft PowerPoint affected versions not specified Microsoft Office affected versions not specified Microsoft 365 Apps for Enterprise affected versions not specified Description Improper input validation in Microsoft Office PowerPoint allows...

EUVD-2026-54326

Improper verification of cryptographic signature in Microsoft 365 Admin Center allows an unauthorized attacker to elevate privileges over a network...

CVE-2026-62873

Improper verification of cryptographic signature in Microsoft 365 Admin Center allows an unauthorized attacker to elevate privileges over a network...

How to Apply Custom Settings in Veeam Backup for Microsoft 365 Using Set-VBOConfigurationParameter

Purpose This article explains how to use the Set-VBOConfigurationParameter cmdlet to apply a custom configuration setting within a Veeam Backup for Microsoft 365 deployment. Solution How the Scripts in This Article Are Used Every script in this article begins with the same three variables, which...

CVE-2026-62873 Microsoft 365 Admin Center Elevation of Privilege Vulnerability

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CVE-2026-62873

Microsoft 365 Admin Center is affected by CVE-2026-62873 due to improper verification of cryptographic signatures, enabling elevated privileges over a network for an unauthorized attacker. The vulnerability details provided across sources (NVD, ENISA EUVD, CVE listing, and MSRC) confirm the issue...

CVE-2026-62873 Microsoft 365 Admin Center Elevation of Privilege Vulnerability

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CVE-2026-62873

Improper verification of cryptographic signature in Microsoft 365 Admin Center allows an unauthorized attacker to elevate privileges over a network...

Microsoft 365 Admin Center Elevation of Privilege Vulnerability

Improper verification of cryptographic signature in Microsoft 365 Admin Center allows an unauthorized attacker to elevate privileges over a network...

KLA91190 Multiple vulnerabilities in Microsoft Azure

Multiple vulnerabilities were found in Microsoft Azure. Malicious users can exploit these vulnerabilities to bypass security restrictions, execute arbitrary code, gain privileges, obtain sensitive information, spoof user interface. Below is a complete list of vulnerabilities: 1. An elevation of...

Hackers Compromise Hotel Wi-Fi Gateways to Hijack Microsoft 365 Accounts

Compromised hotel Wi-Fi gateways redirect business travelers to fake Microsoft 365 login pages allowing attackers to steal credentials and authorization tokens...

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

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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

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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,...

HollowGraph Malware Hides C2 and Stolen Files in Microsoft 365 Events Dated 2050

A newly discovered espionage implant has been using a hijacked Microsoft 365 calendar as its command channel, planting operator instructions and smuggling out stolen files as attachments on calendar events dated to the year 2050. Group-IB, which named the malware HollowGraph , says the approach...

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

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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...