Microsoft Office vulnerability (CVE-2026-21509) in active exploitation

Former members tied to the Black Basta ransomware operation have been observed sticking to their tried-and-tested approach of email bombing and Microsoft Teams phishing to establish persistent access to target networks. “Recently, attackers have introduced Python script execution alongside these techniques, using cURL requests to fetch and deploy malicious payloads,” ReliaQuest said in a report

After days of endlessly urging Salesforce or companies to pay them so that their data would not be leaked, the deadline for Salesforce to pay came and went. And as it went, ScatteredLAPSUS$Hunters leaked data from six of the 39 companies listed on its dark web leak site. But that’s where the massive leak that……

A newly discovered campaign has compromised tens of thousands of outdated or end-of-life (EoL) ASUS routers worldwide, predominantly in Taiwan, the U.S., and Russia, to rope them into a massive network. The router hijacking activity has been codenamed Operation WrtHug by SecurityScorecard’s STRIKE team. Southeast Asia and European countries are some of the other regions…

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added two security flaws impacting TP-Link wireless routers to its Known Exploited Vulnerabilities (KEV) catalog, noting that there is evidence of them being exploited in the wild. The vulnerabilities in question are listed below – CVE-2023-50224 (CVSS score: 6.5) – An authentication bypass by spoofing…

Cybersecurity researchers have warned of a new large-scale campaign that exploits security flaws in AVTECH IP cameras and Huawei HG532 routers to rope the devices into a Mirai botnet variant dubbed Murdoc_Botnet. The ongoing activity “demonstrates enhanced capabilities, exploiting vulnerabilities to compromise devices and establish expansive botnet networks,” Qualys security researcher Shilpesh

Microsoft has released an advisory for a high-severity security flaw affecting on-premise versions of Exchange Server that could allow an attacker to gain elevated privileges under certain conditions. The vulnerability, tracked as CVE-2025-53786, carries a CVSS score of 8.0. Dirk-jan Mollema with Outsider Security has been acknowledged for reporting the bug. “In an Exchange hybrid…