technical vulnerabilities Archives

Tech Optimizer

December 2, 2025

Is Antivirus Software Enough? What It Can (and Can’t) Protect You From

Malware remains a significant threat, with DanaBot targeting Windows devices and a new strain of Android malware capable of stealing debit card information. Nearly three-quarters of Americans have experienced online attacks, highlighting the importance of antivirus software for digital security. Antivirus software can protect against various threats, including malware, ransomware, Trojans, spyware, and adware, but it cannot prevent social engineering attacks, physical theft, zero-day exploits, or vulnerabilities from outdated software. Regular updates and additional security measures are necessary for comprehensive protection.

Winsage

August 12, 2025

Windows DoS Flaws Enable DDoS Attacks on Domain Controllers

Researchers from SafeBreach Labs have identified four denial-of-service (DoS) vulnerabilities in Microsoft’s Windows operating system that could allow attackers to use publicly accessible Windows domain controllers in distributed denial-of-service (DDoS) attacks. These vulnerabilities exploit protocols such as Remote Procedure Call (RPC) and Lightweight Directory Access Protocol (LDAP), enabling the creation of stealthy botnets without authentication. The flaws arise from improper handling of RPC and LDAP requests in Windows Server environments, including versions up to 2025. One flaw allows unauthenticated users to trigger infinite loops, consuming system resources and facilitating reflection attacks. Microsoft released patches for these vulnerabilities in August 2025, but unpatched systems remain at risk. The vulnerabilities were disclosed at DEF CON 33, where proof-of-concept attacks were demonstrated. SafeBreach has labeled these flaws as “Win-DoS” due to their widespread applicability. Organizations are advised to audit network exposures and isolate domain controllers to mitigate risks. The increase in hyper-volumetric DDoS attacks highlights the urgency for proactive defenses, including automated mitigation tools and regular vulnerability scans. Experts recommend implementing stringent firewall rules to restrict RPC and LDAP exposure and using behavioral analytics to detect anomalous traffic.

Winsage

July 31, 2025

NVIDIA is ending support for its GTX 10-, 9- and 7-series GPUs

NVIDIA is retiring its Maxwell, Pascal, and Volta GPU architectures, with a final driver release scheduled for October. After this, GeForce GTX 7-, 9-, and 10-series cards will receive quarterly security updates, with full support ending in 2028. Users can continue using their GPUs, but they will not be optimized for new games and may face technical vulnerabilities. NVIDIA claims its 11-year support for this hardware exceeds industry standards. NVIDIA's Game Ready Driver support for Windows 10 on all RTX GPUs will continue until October 2026, which is longer than Microsoft's plan to phase out Windows 10. The latest GRD update enhances support for new games and introduces compatibility for 62 new G-Sync displays.