CVE-2025-53020 - Vulnerability Details

Threat entity extracted from intelligence sources

Frequency
4
occurrences
First Seen
February 18, 2026
Last Seen
July 20, 2026

CVE-2025-53020 is a vulnerability tracked across 3 threat clusters and 4 intelligence report mentions on ThreatCluster. First observed February 18, 2026; most recent activity July 20, 2026.

Related Threat Clusters

  • Oracle Linux 9 Vulnerabilities Lead to Critical Security Advisories

    Oracle Linux 9 has issued two important advisories addressing critical vulnerabilities in the Apache HTTP Server. The first advisory (ELSA-2026-21391) details multiple CVEs, including CVE-2026-28780, which allows…

    4 articles · Updated June 25, 2026
  • Multiple CVEs Disclosed for Apache HTTP Server Vulnerabilities

    Four vulnerabilities affecting the Apache HTTP Server have been disclosed, including source code disclosures and denial-of-service (DoS) issues. The vulnerabilities, identified as CVE-2024-39884, CVE-2024-40725,…

    9 articles · Updated February 18, 2026
  • Oracle Linux 10 mod_http2 DoS Vulnerabilities Disclosed

    Oracle has released advisories for multiple denial-of-service (DoS) vulnerabilities affecting mod_http2 in Oracle Linux 10. The vulnerabilities include CVE-2026-43951, CVE-2026-48913, and CVE-2026-49975, all published…

    2 articles · Updated July 20, 2026

Recent Intelligence Reports

  • Oracle Linux 10 mod_http2 Important DoS Vulnerability ELSA-2026 — Linuxsecurity · July 20, 2026
  • Oracle Linux 10 mod_http2 Moderate DoS Advisory ELSA-2026 — Linuxsecurity · July 20, 2026
  • Oracle Linux 9 mod_http2 Important Remote DoS Advisory ELSA-2026 — Linuxsecurity · June 25, 2026
  • CVE-2025-53020 Apache HTTP Server: HTTP/2 DoS by Memory Increase — Api.Msrc.Microsoft · February 18, 2026

Related Entities

DDoS Denial of Service CVE-2026-43951 CVE-2026-48913 CVE-2026-49975 Cwe-400 - Uncontrolled Resource Consumption T1499 - Endpoint Denial of Service Apache HTTP Server Linux Oracle Linux

CVSS v3.1 Breakdown