Patch management fixes known software flaws before attackers exploit them, reducing intrusion risk; prioritize critical systems and verify deployment.
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Background for this topic.
Patch is a software, firmware, or configuration update that fixes a defect, including a vulnerability an attacker could use to gain access, execute code, escalate privileges, or expose data. Patching reduces the exploitable attack surface across operating systems, applications, network devices, and embedded systems; it does not remove risk from unsupported or misconfigured assets, and updates can sometimes introduce compatibility or availability problems.
Effective patch management starts with an accurate inventory and vulnerability assessment, then prioritizes internet-facing systems, high-impact assets, and flaws known to be exploited. Organizations should test updates where practical, deploy them within defined time limits, verify installation, and retain rollback or compensating controls when immediate patching is unsafe. Monitoring vendor advisories and threat intelligence can identify urgent fixes, while documenting exceptions and coverage supports vulnerability management and audit requirements.
Apple has released emergency updates to patch two zero-day vulnerabilities that were exploited in an "extremely sophisticated attack" targeting specific individuals. [...]
Free unofficial patches are available for a new Windows zero-day vulnerability that allows attackers to crash the Remote Access Connection Manager (RasMan) service. [...]
CISA has ordered U.S. federal agencies to patch a critical GeoServer vulnerability now actively exploited in XML External Entity (XXE) injection attacks. [...]
Google has released emergency updates to fix another Chrome zero-day vulnerability exploited in the wild, marking the eighth such security flaw patched since the start of the year. [...]
Microsoft's December 2025 Patch Tuesday fixes 57 flaws, including one actively exploited and two publicly disclosed zero-day vulnerabilities. [...]
American IT software company Ivanti warned customers today to patch a newly disclosed vulnerability in its Endpoint Manager (EPM) solution that could allow attackers to execute code remotely. [...]