All news with #wsus tag

CISA and NSA Urge Immediate Hardening of Exchange Servers

🔒 CISA, the NSA and international partners have issued urgent guidance to harden on‑premises Microsoft Exchange Server instances by restricting administrative access, enforcing multi‑factor authentication, and applying strict transport security. The agencies recommend migrating or decommissioning end‑of‑life and hybrid Exchange servers, enabling the Exchange Emergency Mitigation Service, and disabling remote PowerShell for users. Organizations are also advised to maintain patch cadence, apply security baselines, and enable antivirus, EDR, ASR, and AppLocker controls.

CISA orders patch for critical WSUS RCE exploited now

🔔 CISA ordered U.S. federal agencies to urgently patch a critical, actively exploited Windows Server Update Services vulnerability (CVE-2025-59287) that enables unauthenticated remote code execution with SYSTEM privileges. Microsoft released out-of-band security updates after proof-of-concept exploit code appeared, and administrators are urged to install them immediately or disable the WSUS Server role as an interim mitigation. Security firms reported scanning and attacks against WSUS instances exposed on default ports 8530/8531, and CISA has added the flaw to its Known Exploited Vulnerabilities catalog, mandating federal patching under BOD 22-01.

Critical Microsoft WSUS RCE Flaw Exploited in Wild Now

⚠️Microsoft released out-of-band updates to fully remediate a critical deserialization vulnerability in Windows Server Update Service (WSUS), tracked as CVE-2025-59287. The initial Oct. 14 fixes were incomplete, prompting emergency patches for multiple Windows Server versions. Exploits in the wild were reported after a public proof-of-concept was published, allowing remote code execution as SYSTEM on affected servers.

Microsoft Releases Out-of-Band WSUS Patch for CVE-2025-59287

⚠ Microsoft released an out-of-band security update (October 23, 2025) to remediate a critical Windows Server Update Service (WSUS) remote code execution vulnerability, CVE-2025-59287, after a prior fix proved incomplete. The flaw affects WSUS on Windows Server 2012, 2016, 2019, 2022, and 2025 and could allow an unauthenticated actor to execute code with SYSTEM privileges. CISA urges organizations to identify affected WSUS servers, apply the update and reboot, or temporarily disable the WSUS Server Role or block inbound TCP ports 8530/8531 as mitigations until the patch is installed.

Microsoft issues emergency WSUS updates for critical RCE

⚠️ Microsoft has released out-of-band security updates to remediate a critical WSUS vulnerability tracked as CVE-2025-59287. The flaw affects only Windows servers with the WSUS Server Role enabled and allows remote, unauthenticated attackers to execute code as SYSTEM in low-complexity attacks without user interaction. Microsoft published cumulative KB updates for all affected Server builds and requires a reboot; administrators who cannot patch immediately are advised to disable the WSUS role or block TCP ports 8530/8531 as temporary mitigations.

Action1 vs WSUS: A Modern Approach to Patch Management

⚙️ This sponsored comparison contrasts Action1, a cloud-native patch management platform, with Microsoft's legacy WSUS. It examines installation, ongoing maintenance, patch coverage, remote delivery, automation, troubleshooting, and reporting. The piece argues that Action1 reduces infrastructure overhead, patches third-party apps, and supports remote endpoints without VPN. It concludes that Action1 better fits modern, hybrid environments and audit-driven compliance needs.