Denial-of-Service is a attack_type tracked across 50 threat clusters and 58 intelligence report mentions on ThreatCluster. First observed October 30, 2025; most recent activity July 14, 2026.
A cyberattack targeting Poland's energy grid in December has been linked to a Russian government-affiliated hacking group. The attack affected 30 wind and photovoltaic farms and prompted the Cybersecurity and…
Cisco has disclosed a critical authentication bypass vulnerability, CVE-2026-20182, affecting its Catalyst SD-WAN Controller and Manager. This flaw allows unauthenticated remote attackers to bypass authentication and…
OpenSSL has patched a high-severity stack buffer overflow vulnerability, tracked as CVE-2025-15467. This flaw allows unauthenticated attackers to trigger denial-of-service conditions and potentially execute remote code…
On June 17, 2026, F5 released emergency patches for two critical vulnerabilities in NGINX, CVE-2026-42530 and CVE-2026-42055. These vulnerabilities affect NGINX Open Source, NGINX Plus, and related products, allowing…
A joint advisory from 21 global cybersecurity agencies warns that Russian state hackers from the FSB's Center 16 are exploiting poorly configured routers to infiltrate critical infrastructure networks worldwide. The…
The Apache Software Foundation has issued critical security updates for two vulnerabilities in Apache Traffic Server (ATS), disclosed on April 2, 2026. These flaws allow remote attackers to trigger denial-of-service…
Citrix disclosed six high-severity vulnerabilities in NetScaler ADC and Gateway appliances, including CVE-2026-8451, which allows unauthenticated memory disclosure when configured as a SAML identity provider. Other…
Fluentd v1.19.3 addresses multiple vulnerabilities, including a critical RCE flaw tracked as CVE-2026-44024. These vulnerabilities can allow unauthenticated remote attackers to execute arbitrary code, access sensitive…
Multiple high-severity vulnerabilities have been identified in GitLab Community Edition (CE) and Enterprise Edition (EE) products, affecting versions 12.10.0 to 19.0.1. The vulnerabilities, including CVE-2026-6552,…
Cisco has released security advisories addressing multiple high-severity vulnerabilities in its Unity Connection product. The most critical flaws allow authenticated attackers to inject and execute malicious code…