Latest cybersecurity reporting from selected sources.

Zoom warns of a critical Windows flaw, tracked as CVE-2026-53412, that could let attackers take over accounts without authentication. Zoom has fixed a critical Windows vulnerability, tracked as CVE-2026-53412 (CVSS score of 9.8) that could allow unauthenticated attackers to hijack user accounts. The flaw affects older versions of Workplace, the Windows VDI Client, and the […]

CISA confirms BlueHammer (CVE-2026-33825) is now used in ransomware attacks to gain SYSTEM privileges through Microsoft Defender. BlueHammer, tracked as CVE-2026-33825, has moved from proof-of-concept noise to real ransomware attacks in the wild, the US CISA confirms. BlueHammer allows attackers to escalate privileges locally in Microsoft Defender. The vulnerability, along with two other zero-days dubbed […]

Microsoft has disclosed that a privilege escalation and a denial-of-service flaw in Defender has come under active exploitation in the wild

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has urged government agencies to apply patches for two security flaws impacting Synacor Zimbra Collaboration Suite (ZCS) and Microsoft Office SharePoint, stating they have been actively exploited in the wild

A high-severity flaw impacting Microsoft SharePoint has been added to the Known Exploited Vulnerabilities (KEV) catalog by the U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday, citing evidence of active exploitation

Microsoft has disclosed an unpatched zero-day in Office that, if successfully exploited, could result in unauthorized disclosure of sensitive information to malicious actors

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a security flaw impacting the Microsoft Sharepoint Server to its Known Exploited Vulnerabilities (KEV) catalog based on evidence of active exploitation in the wild

Microsoft's Threat Intelligence team issued a warning earlier today about the Russian state-sponsored actor APT28 (aka "Fancybear" or "Strontium") actively exploiting the CVE-2023-23397 Outlook flaw to hijack Microsoft Exchange accounts and steal sensitive information. [...]

North Korean threat actors are actively exploiting a critical security flaw in JetBrains TeamCity to opportunistically breach vulnerable servers, according to Microsoft

Microsoft has linked the exploitation of a recently disclosed critical flaw in Atlassian Confluence Data Center and Server to a nation-state actor it tracks as Storm-0062 (aka DarkShadow or Oro0lxy)

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added two security flaws to its Known Exploited Vulnerabilities (KEV) catalog due to active exploitation, while removing five bugs from the list due to lack of adequate evidence

Iranian nation-state groups have now joined financially motivated actors in actively exploiting a critical flaw in PaperCut print management software, Microsoft said

Microsoft on Friday shared guidance to help customers discover indicators of compromise (IoCs) associated with a recently patched Outlook vulnerability

A security vulnerability (CVE-2022-28799) in one of TikTok for Android's deeplinks could affect billions of users, Microsoft warns.

Ukraine's Computer Emergency Response Team (CERT) is warning that the Russian hacking group Sandworm may be exploiting Follina, a remote code execution vulnerability in Microsoft Windows Support Diagnostic Tool (MSDT) currently tracked as CVE-2022-30190. [...]