cve-2025-54101

About this tag
CVE-2025-54101 is a use-after-free vulnerability in the Windows SMBv3 Client that can be triggered over a network, potentially allowing an attacker to execute arbitrary code in the context of the affected process. This client-side remote code execution (RCE) flaw was addressed in Microsoft's September Patch Tuesday 2025 update, which also included fixes for dozens of other CVEs across Windows core components, Office, graphics, SMB/SMBv3, NTLM, and virtualization subsystems. Cisco Talos published Snort rules to detect exploit attempts against this and other high-priority elevation-of-privilege and memory-safety issues. Administrators and endpoint owners should prioritize patching affected systems and apply layered mitigations until updates are confirmed and deployed.

  1. September Patch Tuesday 2025: Talos Snort Rules and the SOC Playbook

    Microsoft’s September Patch Tuesday arrived with a broad set of fixes and a matching set of detection updates from Cisco Talos — including a new Snort ruleset — aimed at the most likely-to-be-exploited flaws this month. The update package contains dozens of CVEs spanning Windows core components...
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    • cve-2025-54101 cve-2025-54910 cve-2025-54916 cve-2025-54918 cve-2025-55226 cve-2025-55236 directx eop graphics kernel hyper-v msrc ntfs ntlm office patch management patch tuesday 2025 rce smbv3 snort talos
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    • Forum: Windows News

  2. CVE-2025-54101: Remediation for Windows SMBv3 Client Use-After-Free RCE

    Microsoft’s advisory identifies CVE-2025-54101 as a use‑after‑free vulnerability in the Windows SMBv3 Client that can be triggered over a network and may allow an attacker to execute arbitrary code in the context of the affected process. This is a serious client‑side remote code execution (RCE)...
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    • cve-2025-54101 cybersecurity edr ids/ips msrc network security patch patch management patch rollout perimeter security rce remote code execution security updates smb security smbv3 threat intel use-after-free vulnerability windows
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    • Forum: Security Alerts