CVE-2025-9820 - Vulnerability Details

Related Threat Clusters

• Critical GnuTLS Vulnerabilities Affecting Ubuntu Systems

  Multiple vulnerabilities in GnuTLS have been identified, primarily affecting Ubuntu 18.04 LTS and 20.04 LTS. A timing side-channel vulnerability (CVE-2024-0553) could allow remote attackers to recover sensitive…

  6 articles · Updated July 6, 2026
• SUSE Linux Micro 6.2 gnutls Vulnerabilities Addressed in Latest Update

  On April 8, 2026, SUSE released an update for gnutls in SUSE Linux Micro 6.2 to address two vulnerabilities: CVE-2025-14831 and CVE-2025-9820. CVE-2025-14831 involves a denial-of-service (DoS) attack that can occur due…

  2 articles · Updated April 8, 2026
• Critical GnuTLS Vulnerabilities Addressed in Fedora 43 Updates

  Fedora 43 has released critical updates for GnuTLS, addressing vulnerabilities CVE-2025-9820 and CVE-2025-14831. The updates include fixes for a NULL pointer dereference issue and enhancements to the secure…

  10 articles · Updated February 12, 2026
• openSUSE Podman and OpenSSH Vulnerabilities Addressed in Recent Updates

  openSUSE has released updates for Podman and OpenSSH to address critical vulnerabilities. The Podman update fixes a denial-of-service issue (CVE-2025-47913) related to unexpected message types, while the OpenSSH update…

  22 articles · Updated November 21, 2025

Recent Intelligence Reports

• Ubuntu GnuTLS Critical Denial of Service and Security Issues 2026-8502 — Linuxsecurity · July 6, 2026
• USN-8502-1: GnuTLS vulnerabilities — Ubuntu · July 6, 2026
• SUSE Linux Micro 6.2 gnutls Moderate DoS Buffer Overflow update info — Linuxsecurity · April 8, 2026
• SUSE Linux Micro 6.2 gnutls Moderate DoS Buffer Overflow Vuln 2026-20968 — Linuxsecurity · April 8, 2026
• SUSE Linux Enterprise Micro 5.3: 2025:4271-1 CVE-2025 — Linuxsecurity · November 27, 2025
• Fedora 43: Critical Patch for GnuTLS 3.8.11 Addressing CVE-2025 — Linuxsecurity · November 23, 2025

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