Cisco Warns of Attackers Exploiting Critical Authentication Bypass in SD-WAN Manager

Cisco warned that attackers are actively exploiting CVE-2026-76504, a critical zero-day in Cisco Catalyst SD-WAN Manager that can let a remote unauthenticated attacker use the API as the admin user. Cisco has released fixed versions and advised customers to restrict internet exposure, check for signs of compromise, and upgrade immediately. #CVE-2026-76504…

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Attackers Abuse MSP360 to Deploy ScreenConnect in Dual-RMM Phishing Attacks

Microsoft warned of phishing campaigns that distribute a legitimate MSP360 Remote Monitoring and Management installer under deceptive lures such as meeting invitations, PDF-themed files, and software update prompts. After installation, the attackers use MSP360 and then ScreenConnect to maintain persistent remote access, collect credentials, and stage additional tools. #MSP360 #ScreenConnect #FaronicsDeployAgent…

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Attackers Exploit Zimbra Flaw to Deploy Web Shells and Harvest Authentication Secrets

Microsoft reported that threat actors exploited the patched Zimbra Collaboration Suite flaw CVE-2026-73570 to deploy web shells, gain persistence, and collect mailbox and authentication data across affected organizations. The activity also involved lateral movement, credential theft, and attempted exfiltration using tools such as Zimclient2 and AzCopy, prompting urgent patching and hardening…

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Cisco warns of new SD-WAN zero-day exploited in attacks

Cisco has released security updates for CVE-2026-76504, a critical zero-day in Catalyst SD-WAN Manager that is being actively exploited to gain admin privileges. The flaw affects all deployments and lets unauthenticated attackers bypass authentication through crafted HTTP requests, with Cisco urging customers to upgrade and check logs for signs of compromise. #Cisco #CatalystSDWANManager #CVE202676504

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CISA warns of critical pre-auth RCE flaw in MikroTik RouterOS

CISA has warned about CVE-2026-84411, a critical pre-authentication integer underflow in MikroTik RouterOS that can allow unauthenticated attackers to execute code as root or trigger a denial of service with a single crafted request. The agency says no active exploitation is known yet, but it urges MikroTik router owners to restrict internet exposure, segment networks, and update affected systems. #CVE-2026-84411 #MikroTik #RouterOS

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Government, Finance Orgs Targeted in Weeks-Long NetScaler Zero-Day Attacks

Google’s Mandiant and GTIG reported ongoing exploitation of NetScaler zero-days CVE-2026-88771 and CVE-2026-88772, which attackers used to gain root access and deploy web shells. The campaign, active since at least early September, affected organizations across multiple sectors in North America and Europe, with more than 100 victims potentially impacted. #CVE-2026-88771 #CVE-2026-88772…

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Google: AI Is Changing the Pace and Profile of Vulnerability Discovery

Google Threat Intelligence Group says vulnerability disclosures and real-world exploitation both surged in 2026, with AI increasingly affecting how flaws are discovered and weaponized. The report highlights faster n-day exploitation, more high-risk findings, and growing exposure in AI-related systems such as BeyondTrust Privileged Remote Access, LiteLLM, and Langflow. #GTIG #CVE-2026-1731 #BeyondTrust…

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