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High7.6Red Hat Linux

High [CVE-2026-23533] Heap buffer overflow leads to denial of service and potential code execution

This high-severity Red Hat Linux advisory covers CVE-2026-23533 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-2026-23533 Published Jan 19, 2026
CVE-2026-23533
Affected products & platforms
Red Hat LinuxUnclassified
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Summary

Heap buffer overflow leads to denial of service and potential code execution. Red Hat rates this important (CVSS 7.6).

Weakness: CWE-122. Affected package(s): freerdp.

Resolved in Red Hat advisory RHSA-2026:2952 — 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
  • freerdp-2:3.10.3-3.el10_0.1
  • freerdp-2:2.11.2-1.el9_4.1
  • freerdp-2:2.2.0-12.el8_8.1
  • freerdp-2:2.2.0-7.el8_6.1
  • freerdp-2:2.0.0-46.rc4.el8_2.6
  • freerdp-2:2.11.7-1.el9_6.1
  • freerdp-2:3.10.3-5.el10_1.1
  • freerdp-2:2.4.1-3.el9_0
  • freerdp-2:2.11.7-1.el9_7.1
  • freerdp-2:2.2.0-7.el8_4
  • freerdp-0:2.1.1-5.el7_9.1
  • freerdp-2:2.11.7-2.el8_10

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

Fixed versions
  • RHSA-2026:2952

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-2026:2952 (`sudo dnf update` / `yum update`).

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

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