How to Stay Protected: August Patch Tuesday Fixes 107 Security Vulnerabilities .Microsoft’s August 2025 Patch Tuesday updates address 107 security vulnerabilities across Windows and its broader product portfolio, including fixes for 13 critical flaws and one publicly disclosed vulnerability. (TechTarget)
🔐 Summary of This Month’s Patch Tuesday
- Microsoft released security updates for 107 CVEs with 13 critical ratings this August. (TechTarget)
- The updates cover key products including Windows Server, Exchange Server, SharePoint Server, domain controllers, and other core components. (TechTarget)
- While there are no actively exploited zero‑days this month, a publicly disclosed Kerberos elevation‑of‑privilege issue remains a concern for enterprise environments. (TechTarget)
👉 For the full list of patches and deployment guidance, see Microsoft’s official Patch Tuesday release notes. (Outbound link to Microsoft security update guide)
🛡️ Key Vulnerabilities to Prioritize
🪪 Publicly Disclosed Kerberos Vulnerability
- CVE‑2025‑53779: A Windows Kerberos elevation‑of‑privilege vulnerability that could allow an attacker to escalate privileges within an Active Directory domain, potentially leading to full domain compromise if exploited. (TechTarget)
- Microsoft rates this vulnerability as moderate, with public disclosure but no confirmed active exploitation to date. (TechTarget)
👉 See CVE‑2025‑53779 Details on Tenable for technical vulnerability context. (Outbound link to Tenable CVE page)
📧 Exchange Server Fixes — Critical for Hybrid Deployments
Microsoft also delivered five patches for Exchange Server, addressing vulnerabilities that could impact both on‑premises and hybrid configurations: (TechTarget)
- CVE‑2025‑53786 – Elevation‑of‑privilege vulnerability with a high CVSS score of 8.0; could allow privilege escalation for attackers with access to on‑prem Exchange environments. (TechTarget)
- Several lower‑severity information disclosure, tampering, and spoofing issues affecting Exchange. (TechTarget)
Because of its impact on hybrid Exchange installations, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) issued an emergency directive urging rapid mitigation for affected systems. (TechTarget)
👉 For more on Exchange hotfixes and security advisories, check out Microsoft Exchange Security Advisory ADV2025‑258. (Outbound link to PDF advisory)
📌 Other Notable Vulnerabilities
🟨 SharePoint Server
- CVE‑2025‑49712 – Remote code execution vulnerability in SharePoint Server with a CVSS score of 8.8, particularly risky for externally accessible instances. (TechTarget)
- CVE‑2025‑53760 – Elevation‑of‑privilege issue rated important. (TechTarget)
💻 Windows Graphics & Hyper‑V
- CVE‑2025‑53766 – Critical remote code execution flaw in Graphics Device Interface Plus (GDI+), with a 9.8 CVSS score and potential for exploit via crafted documents. (TechTarget)
- Multiple vulnerabilities in Hyper‑V requiring patching to avoid privilege escalation. (TechTarget)
🌐 Remote Desktop Protocol (RDP)
- CVE‑2025‑50171 – Important remote spoofing vulnerability in RDP; internet‑facing systems and jump servers should be patched quickly. (TechTarget)
🛠️ What Admins Should Do Next
- Prioritize critical systems: Patch domain controllers, Exchange, SharePoint, and externally exposed endpoints first. (TechTarget)
- Review CVE impacts: Identify vulnerabilities by severity and exploitability before deploying across environments. (EquateFile)
- Monitor security advisories: Watch for updates from Microsoft and agencies like CISA for hybrid and cloud‑related guidance. (TechTarget)
📚 References & Suggested Outbound Links
- Microsoft August 2025 Patch Tuesday overview — SearchWindowsServer (Aug 2025 Patch Tuesday coverage) (TechTarget)
- CVE‑2025‑53779 details — Tenable CVE database (Tenable®)
- Exchange security advisory — ADV2025‑258 Microsoft Exchange Security Advisory (Cirt)
- Microsoft official security update guide — Microsoft Patch Tuesday update portal (Outbound link to Microsoft documentation)
📌 Suggested Internal Links (for your site)
- How to Manage Windows Patch Tuesday Updates
- Exchange Server Security Best Practices
- Protecting Active Directory from Privilege Escalation Attacks
