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High7.5Red Hat Linux

High [CVE-2026-2447] Heap buffer overflow in libvpx

This high-severity Red Hat Linux advisory covers CVE-2026-2447 affecting Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8.2 Advanced Update Support.

CVE-2026-2447 Published Feb 16, 2026
CVE-2026-2447
Affected products & platforms
Red Hat LinuxUnclassified
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Summary

Heap buffer overflow in libvpx. Red Hat rates this important (CVSS 7.5).

Affected package(s): libvpx, thunderbird, rhaiis/vllm-rocm-rhel9:1775680262, firefox, rhaiis/vllm-cuda-rhel9:1775680192, rhaiis/vllm-spyre-rhel9:1778244546. Resolved in Red Hat advisory RHSA-2026:3967 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 11 more.

Affected versions
  • libvpx-0:1.14.1-6.el10_1
  • thunderbird-0:140.8.0-1.el9_0
  • thunderbird-0:140.8.0-1.el8_6
  • thunderbird-0:140.8.0-1.el9_6
  • thunderbird-0:140.8.0-1.el8_8
  • thunderbird-0:140.8.0-1.el9_7
  • thunderbird-0:140.8.0-1.el8_2
  • thunderbird-0:140.8.0-1.el9_2
  • libvpx-0:1.9.0-9.el9_6.1
  • rhaiis/vllm-rocm-rhel9:1775680262
  • thunderbird-0:140.8.0-1.el9_4
  • libvpx-0:1.3.0-8.el7_9.3

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

Fixed versions
  • RHSA-2026:3967

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-2026:3967 (`sudo dnf update` / `yum update`).

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

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