#heapoverflow

Researchers publicly disclosed a Knot Resolver RCE flaw and PoC exploit code. The DNS-over-QUIC heap overflow hits 6.3.0; update to 6.4.1 now. #KnotResolver #DNSoverQUIC #RCE #HeapOverflow #PoC #DNSSecurity https://securityonline.info/knot-resolver-doq-rce-poc/?utm_source=mastodon&utm_medium=jetpack_social

🚨 15 years. Millions of servers. One hidden bug. CVE-2026-42533 is a critical NGINX heap buffer overflow lurking since 2011 that can crash worker processes and, under specific conditions, may enable Remote Code Execution (RCE) via specially crafted HTTP requests. Attackers don't just target software versions. They target vulnerable configurations. Upgrade now. 🔥 ✅ Deep technical breakdown: • Why the bug survived for 15 years • Heap buffer overflow explained • LEN vs VALUE script engine flaw • PCRE capture overwrite • Vulnerable nginx configurations • Affected versions • Patch analysis • Mitigations • RCE conditions 📖 Read the full analysis: https://thecybersecguru.com/news/cve-2026-42533-nginx-rce-vulnerability/ #CVE202642533 #NGINX #CyberSecurity #InfoSec #Linux #RCE #HeapOverflow #MemoryCorruption #WebSecurity #DevSecOps #CloudSecurity #Kubernetes #ReverseProxy #Vulnerability #ZeroDay #Exploit #AppSec #BlueTeam #RedTeam #F5

Researchers publicly disclosed a libssh2 vulnerability, CVE-2026-58050, with PoC code. A malicious SSH server can corrupt a client's heap. Patch now. #libssh2 #CVE202658050 #SSH #HeapOverflow #PoC #Cybersecurity #Infosec https://securityonline.info/libssh2-vulnerability-cve-2026-58050/?utm_source=mastodon&utm_medium=jetpack_social