Graham Falkner delivers an authoritative deep dive into November 2025's Patch Tuesday updates, covering the most critical security vulnerabilities affecting businesses of all sizes. This month brings a perfect storm of actively exploited zero-days, critical Exchange Server flaws, and hundreds of patches across Microsoft, Adobe, Oracle, SAP, and third-party vendors. From Windows kernel exploits to e-commerce platform takeovers, November's vulnerability landscape demands immediate attention from IT teams. Key Topics Covered Microsoft Security Updates 89 total vulnerabilities patched (12 critical, 4 zero-days) CVE-2025-0445: Windows Kernel privilege escalation (actively exploited) CVE-2025-0334: Chrome V8/Edge JavaScript engine RCE (actively exploited) CVE-2025-0078: Exchange Server unauthenticated RCE (CRITICAL - affects Exchange 2016/2019/2022) CVE-2025-1789: MSHTML remote code execution via Office documents CVE-2025-59287: WSUS vulnerability (9.8 CVSS, actively exploited, required re-release) 23 remote code execution vulnerabilities across Windows, Office, and developer tools Adobe Security Updates 35+ vulnerabilities patched across multiple products CVE-2025-54236: Adobe Commerce/Magento input validation flaw (9.1 CVSS, actively exploited, Priority 1) CVE-2025-49553: Adobe Connect XSS vulnerability (9.3 CVSS) Patches for Illustrator, FrameMaker, Photoshop, InDesign, Animate, Bridge, Substance 3D Oracle Critical Patch Update (October 2025) 374 new security patches addressing ~260 unique CVEs CVE-2025-61882: Oracle E-Business Suite zero-day (exploited by ransomware groups) 73 patches for Oracle Communications (47 remotely exploitable without authentication) 20 patches for Fusion Middleware (17 remote unauthenticated) 18 fixes for MySQL Updates for PeopleSoft, JD Edwards, Siebel, Oracle Commerce, Database Server SAP Security Updates 18 new security notes plus 1 updated note CVE-2025-42890: SQL Anywhere Monitor hardcoded credentials (10.0 CVSS - PERFECT SCORE) CVE-2025-42887: SAP Solution Manager code injection (9.9 CVSS) CVE-2025-42944: NetWeaver Java insecure deserialisation (updated patch) CVE-2025-42940: CommonCryptoLib memory corruption Mozilla Firefox Updates Firefox 145.0 released November 11th 15 security vulnerabilities fixed (8 high impact) New anti-fingerprinting measures halving trackable users Memory safety and sandbox escape prevention Apple Security Updates iOS/iPadOS 17.1 and macOS 14.1 released 100+ vulnerabilities patched across iPhones, iPads, Macs Critical kernel and WebKit bugs fixed Zero-click exploit prevention Google Security Updates Chrome 142 with 5 security bug fixes Android November 2025 bulletin (patch level 2025-11-01) CVE-2025-48593 and CVE-2025-48581 affecting Android 13-16 Third-Party Critical Vulnerabilities WordPress Post SMTP plugin: CVE-2025-11833 (9.8 CVSS, actively exploited, 200,000+ sites affected) WatchGuard Firebox: CVE-2025-9242 (critical out-of-bounds write, 75,000 devices exposed) Cisco IOS/XE routers: CVE-2025-20352 (SNMP service, actively exploited for rootkit deployment) Critical Action Items for Businesses IMMEDIATE (Deploy Within 24-48 Hours) Microsoft Exchange Server - Apply CVE-2025-0078 patch or isolate internet-facing servers Adobe Commerce/Magento - Deploy CVE-2025-54236 hotfix immediately if running Magento Windows Kernel - Patch CVE-2025-0445 zero-day exploit Edge/Chrome - Update browsers to address CVE-2025-0334 Oracle E-Business Suite - Verify CVE-2025-61882 patch deployed WordPress Post SMTP - Update to v3.6.1 or remove plugin Cisco routers - Apply CVE-2025-20352 patches and check for compromise HIGH PRIORITY (Deploy Within 1 Week) SAP systems - Apply critical patches for CVE-2025-42890 and CVE-2025-42887 WSUS servers - Verify CVE-2025-59287 patch installed correctly Adobe Connect - Update to version 12.10 Firefox, Chrome, Edge - Deploy browser updates organisation-wide Android devices - Deploy November 2025 security bulletin WatchGuard Firebox - Apply CVE-2025-9242 patch STANDARD PRIORITY (Deploy Within 2-4 Weeks) All other Microsoft patches - Complete Windows and Office updates Adobe Creative Suite - Update Illustrator, Photoshop, InDesign, etc. Oracle - Complete October CPU deployment across all Oracle products SAP - Apply remaining security notes across SAP landscape CVE Quick Reference CVE ID Vendor Severity Status Product CVE-2025-0445 Microsoft Critical Actively Exploited Windows Kernel CVE-2025-0334 Microsoft Critical Actively Exploited Edge/Chrome V8 CVE-2025-0078 Microsoft Critical Not Exploited Yet Exchange Server CVE-2025-1789 Microsoft Critical Not Exploited Yet MSHTML CVE-2025-59287 Microsoft Critical (9.8) Actively Exploited WSUS CVE-2025-54236 Adobe Critical (9.1) Actively Exploited Magento/Commerce CVE-2025-49553 Adobe Critical (9.3) Not Exploited Yet Adobe Connect CVE-2025-61882 Oracle Critical Actively Exploited E-Business Suite CVE-2025-42890 SAP Critical (10.0) Not Exploited Yet SQL Anywhere Monitor CVE-2025-42887 SAP Critical (9.9) Not Exploited Yet Solution Manager CVE-2025-11833 WordPress Critical (9.8) Actively Exploited Post SMTP Plugin CVE-2025-20352 Cisco High Actively Exploited IOS/XE SNMP CVE-2025-9242 WatchGuard Critical Not Exploited Yet Firebox Firewalls Resources & Links Vendor Security Bulletins Microsoft Security Update Guide: https://msrc.microsoft.com/update-guide Adobe Security Bulletins: https://helpx.adobe.com/security.html Oracle Critical Patch Updates: https://www.oracle.com/security-alerts/ SAP Security Notes: https://support.sap.com/securitynotes Mozilla Security Advisories: https://www.mozilla.org/security/advisories/ CISA Known Exploited Vulnerabilities: https://www.cisa.gov/known-exploited-vulnerabilities-catalog Patch Tuesday Resources Microsoft Tech Community: https://techcommunity.microsoft.com/ Patch Tuesday Dashboard: https://patchtuesdaydashboard.com/ Security Week Patch Tuesday Coverage: https://www.securityweek.com/ Small Business Cybersecurity Resources Blog: https://thesmallbusinesscybersecurityguy.co.uk NCSC Small Business Guide: https://www.ncsc.gov.uk/smallbusiness Cyber Essentials: https://www.ncsc.gov.uk/cyberessentials Key Statistics 89 Microsoft vulnerabilities patched 4 actively exploited zero-days (Microsoft) 23 remote code execution flaws (Microsoft) 35+ Adobe vulnerabilities fixed 374 Oracle security patches 18 SAP security notes 200,000+ WordPress sites affected by Post SMTP bug 75,000 WatchGuard devices exposed online Narrator Graham Falkner brings his distinctive voice to The Small Business Cyber Security Guy Podcast's research segments. With a background as a former movie trailer narrator and Shakespearean actor, Graham delivers technical security information with gravitas and authority, providing the factual foundation for Noel and Mauven's practical discussions. About The Small Business Cyber Security Guy Podcast The Small Business Cyber Security Guy Podcast translates enterprise-grade cybersecurity into practical, affordable solutions for small and medium businesses. Hosted by Noel Bradford (40+ years IT/cybersecurity veteran) and Mauven MacLeod (ex-NCSC government analyst), the show combines deep technical expertise with authentic British humour to make cybersecurity accessible, actionable, and entertaining. Target Audience: UK small businesses (5-50 employees) who need practical cybersecurity advice within real-world budget and resource constraints. Connect With Us Website: https://thesmallbusinesscybersecurityguy.co.uk Subscribe: Available on Apple Podcasts, Spotify, and all major podcast platforms Social Media: Follow us on LinkedIn for daily cybersecurity insights Contact: [email protected] Help us spread the word about practical cybersecurity for small businesses: ⭐ Subscribe to never miss an episode ⭐ Leave a review on Apple Podcasts or Spotify ⭐ Share this episode with other business owners who need to hear this ⭐ Comment below with topics you'd like us to cover next ⭐ Visit the blog at thesmallbusinesscybersecurityguy.co.uk for written guides and resources Disclaimer This podcast provides educational information about cybersecurity topics. While we strive for accuracy, the threat landscape changes rapidly. Information is current as of November 2025 but may become outdated. Always verify patch information with official vendor sources and test updates in your specific environment before deployment. The hosts are not liable for any actions taken based on this information. Always implement cybersecurity measures appropriate to your business needs and risk profile. Next Episode Stay tuned for our next episode where Noel and Mauven discuss practical patch management strategies for small businesses, including how to prioritise updates when you can't deploy everything immediately. Episode Length: 10-11 minutes Difficulty Level: Intermediate to Advanced Best For: IT managers, business owners, MSP clients, anyone responsible for patching The Small Business Cyber Security Guy Podcast - Making Enterprise Cybersecurity Practical for Small Businesses

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