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Medium5.9Vendor: LowRed Hat Linux

Medium [CVE-2025-15468] Denial of Service via NULL pointer dereference in QUIC protocol handling

This medium-severity Red Hat Linux advisory covers CVE-2025-15468 affecting Red Hat Enterprise Linux 1, Red Hat Enterprise Linux 9, openssl.

CVE-2025-15468 Published Jan 27, 2026
CVE-2025-15468
Affected products & platforms
Red Hat LinuxUnclassified
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Summary

Denial of Service via NULL pointer dereference in QUIC protocol handling. Red Hat rates this low (CVSS 5.9).

Weakness: CWE-476. Affected package(s): openssl, discovery/discovery-ui-rhel9:1769111774, costmanagement/costmanagement-metrics-rhel9-operator:1770836349, insights-proxy/insights-proxy-container-rhel9:1770740405, rhui5/rhua-rhel9:1773670137, rhui5/cds-rhel9:1773670073.

Resolved in Red Hat advisory RHSA-2026:3228 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.

Affected versions
  • openssl-1:3.5.1-7.el10_1
  • discovery/discovery-ui-rhel9:1769111774
  • costmanagement/costmanagement-metrics-rhel9-operator:1770836349
  • insights-proxy/insights-proxy-container-rhel9:1770740405
  • openssl-1:3.5.1-7.el9_7
  • rhui5/rhua-rhel9:1773670137
  • rhui5/cds-rhel9:1773670073
  • rhui5/haproxy-rhel9:1773672059
  • rhui5/installer-rhel9:1770646925
  • discovery/discovery-server-rhel9:1769104765
  • openssl-main-3.5.6-0.1.hum1

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions
  • RHSA-2026:3228

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Update the affected package(s) to the fixed version shipped in RHSA-2026:3228 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

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