Microsoft releases September security updates, patches 81 vulnerabilities

📰Did you know Microsoft just addressed a significant number of security vulnerabilities? 🤔 Microsoft has patched 80 security flaws across its software. This includes eight critical vulnerabilities and 72 important ones. The good news? None of these flaws have been exploited in the wild as zero-day attacks. This proactive approach strengthens the security posture for many users. A significant portion – 38 – of these disclosed flaws are related to SMB

Microsoft has released the scheduled Patch Tuesday updates for September 2025, addressing 81 security vulnerabilities… Microsoft Fixed 2 Zero-Days Amid 80+ Patches With September 2025 Patch Tuesday on Latest Hacking New... https://lnkd.in/dManqnge

Advanced persistent threats play the long game. Learn how to detect, prevent, and respond to these stealthy attacks with layered security strategies from Microsoft Security. Class is in session: https://msft.it/6047sqIl1

Advanced persistent threats play the long game. Learn how to detect, prevent, and respond to these stealthy attacks with layered security strategies from Microsoft Security. Class is in session: https://msft.it/6047sqIl1

An advanced persistent threat is a long-term, targeted cyberattack designed to infiltrate an organization and remain hidden for as long as possible. Unlike broad attacks that look for easy targets, APTs are calculated and personal. Attackers choose their targets carefully, often targeting high-value entities like government agencies, critical infrastructure, or large enterprises. They work methodically to gain access and remain there. The goal of an APT is to quietly monitor activity, steal sensitive data, or disrupt operations without alerting the victim. These campaigns often unfold over weeks, months, or even years. Because of their stealth and complexity, APTs can be difficult to detect and even harder to  contain once they’ve  taken root. at CISO Online™ we leverage Microsoft Security to protect our clients against APTs.

Today marks Microsoft Patch Tuesday for September 2025, addressing 86 vulnerabilities. This includes several remote code execution and privilege escalation issues. As always, ensure your networks are updated promptly. For more detailed information on these and other vulnerabilities, please refer to the release notes here: https://lnkd.in/dHpTjmk8

🚨 Microsoft just patched 80 vulnerabilities including two zero-day flaws in their September 2025 update Microsoft's latest Patch Tuesday addressed a significant security load with 80 vulnerabilities, including two publicly disclosed zero-day flaws (CVE-2025-55234 and CVE-2024-21907). While neither has been actively exploited in the wild yet, the timing and scope demand immediate attention from security teams. The most concerning vulnerability is CVE-2025-55232 with a CVSS score of 9.8, affecting Microsoft HPC Pack. This flaw allows remote code execution without authentication and has the potential to be wormable—meaning it could spread automatically across networks without user interaction. What makes this particularly noteworthy: • Two zero-days disclosed publicly before patches were available • Critical RCE vulnerability with wormable potential • 80 total vulnerabilities in a single update cycle • No active exploitation detected (yet) For defenders, this highlights the ongoing challenge of managing large patch cycles while prioritizing based on exploitability and business impact. The HPC Pack vulnerability should be top priority given its authentication bypass and potential for lateral movement. How are your teams handling large patch Tuesday releases like this? Are you seeing increased pressure to accelerate patch deployment timelines? #CyberSecurity #ThreatIntelligence #ZeroDay #CVE

Explore emerging attack methods, evolving AI-driven threats, supply chain risks, and strategies to strengthen defenses and stay ahead of cyber risks.

Explore emerging attack methods, evolving AI-driven threats, supply chain risks, and strategies to strengthen defenses and stay ahead of cyber risks.

Explore emerging attack methods, evolving AI-driven threats, supply chain risks, and strategies to strengthen defenses and stay ahead of cyber risks.