Experts warn of active exploitation of critical NGINX flaw CVE-2026-42945
A critical NGINX flaw (CVE-2026-42945) is actively exploited, allowing crashes or possible code execution via malicious HTTP requests. A critical vulnerability in NGINX Plus and NGINX Open, tracked as CVE-2026-42945 (CVSS v4 score of 9.2), is already being actively exploited shortly after disclosure. “We’re seeing active exploitation of CVE-2026-42945 in F5 NGINX, a heap buffer […]

A critical vulnerability in NGINX Plus and NGINX Open, tracked as CVE-2026-42945 (CVSS v4 score of 9.2), is already being actively exploited shortly after disclosure.
“We’re seeing active exploitation of CVE-2026-42945 in F5 NGINX, a heap buffer overflow affecting both NGINX Plus and NGINX Open Source on VulnCheck Canaries just days after the CVE was published.” reported VulnCheck.
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