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.
Google on Thursday released security updates to address a zero-day flaw in Chrome that it said has been actively exploited in the wild
F5 customers should patch immediately, though even that won't protect them from every problem with their networked devices.
Patch now: CVE-2023-49606 in the open source, small-footprint proxy server can potentially lead to remote code execution.
Vulnerabilities added to the CISA known exploited vulnerability (KEV) list do indeed get patched faster, but not fast enough.