RHSA-2026:99035: Important: freerdp security update

Published Nov 11, 2026
·
Updated

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. The xfreerdp client can connect to RDP servers such as Microsoft Windows machines, xrdp, and VirtualBox.Security Fix(es): FreeRDP: FreeRDP: Denial of Service via crafted Surface Bits command (CVE-2026-91954) FreeRDP: FreeRDP: Remote code execution via heap buffer overflow in Server Redirection PDU (CVE-2026-91964) FreeRDP: FreeRDP: Denial of Service via out-of-bounds read in URBDRC channel (CVE-2026-91956) FreeRDP: FreeRDP: Remote code execution via uninitialized heap memory disclosure (CVE-2026-91963) FreeRDP: FreeRDP: Denial of Service due to buffer over-read in RPC gateway (CVE-2026-91959) FreeRDP: FreeRDP: Heap buffer overflow via oversized LBLOADBALANCEINFO routing token can lead to heap corruption. (CVE-2026-91953) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Affected Software

53 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux Server - AUS
Red Hat Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
redhat/freerdp<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/freerdp<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/freerdp-debuginfo<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/freerdp-debuginfo<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/freerdp-debugsource<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/freerdp-debugsource<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/freerdp-libs<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/freerdp-libs<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/freerdp-libs-debuginfo<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/freerdp-libs-debuginfo<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/libwinpr<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/libwinpr<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/libwinpr-debuginfo<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/libwinpr-debuginfo<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/freerdp<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/freerdp-debuginfo<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/freerdp-debugsource<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/freerdp-libs<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/freerdp-libs-debuginfo<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/libwinpr<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/libwinpr-debuginfo<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/freerdp<2.11.7-1.el9_6.15.aa
2.11.7-1.el9_6.15.aa
redhat/freerdp-debuginfo<2.11.7-1.el9_6.15.aa
2.11.7-1.el9_6.15.aa
redhat/freerdp-debugsource<2.11.7-1.el9_6.15.aa
2.11.7-1.el9_6.15.aa
redhat/freerdp-libs<2.11.7-1.el9_6.15.aa
2.11.7-1.el9_6.15.aa
redhat/freerdp-libs-debuginfo<2.11.7-1.el9_6.15.aa
2.11.7-1.el9_6.15.aa
redhat/libwinpr<2.11.7-1.el9_6.15.aa
2.11.7-1.el9_6.15.aa
redhat/libwinpr-debuginfo<2.11.7-1.el9_6.15.aa
2.11.7-1.el9_6.15.aa
redhat/freerdp-devel<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/freerdp-devel<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/libwinpr-devel<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/libwinpr-devel<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/freerdp-devel<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/libwinpr-devel<2.11.7-1.el9_6.15
2.11.7-1.el9_6.15
redhat/freerdp-devel<2.11.7-1.el9_6.15.aa
2.11.7-1.el9_6.15.aa
redhat/libwinpr-devel<2.11.7-1.el9_6.15.aa
2.11.7-1.el9_6.15.aa

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/freerdp to a version that resolves this vulnerability.

    Fixed in 2.11.7-1.el9_6.15
  2. Upgrade

    Upgrade redhat/freerdp-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.11.7-1.el9_6.15
  3. Upgrade

    Upgrade redhat/freerdp-debugsource to a version that resolves this vulnerability.

    Fixed in 2.11.7-1.el9_6.15
  4. Upgrade

    Upgrade redhat/freerdp-libs to a version that resolves this vulnerability.

    Fixed in 2.11.7-1.el9_6.15
  5. Upgrade

    Upgrade redhat/freerdp-libs-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.11.7-1.el9_6.15
  6. Upgrade

    Upgrade redhat/libwinpr to a version that resolves this vulnerability.

    Fixed in 2.11.7-1.el9_6.15
  7. Upgrade

    Upgrade redhat/libwinpr-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.11.7-1.el9_6.15
  8. Upgrade

    Upgrade redhat/freerdp to a version that resolves this vulnerability.

    Fixed in 2.11.7-1.el9_6.15.aa
  9. Upgrade

    Upgrade redhat/freerdp-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.11.7-1.el9_6.15.aa
  10. Upgrade

    Upgrade redhat/freerdp-debugsource to a version that resolves this vulnerability.

    Fixed in 2.11.7-1.el9_6.15.aa
  11. Upgrade

    Upgrade redhat/freerdp-libs to a version that resolves this vulnerability.

    Fixed in 2.11.7-1.el9_6.15.aa
  12. Upgrade

    Upgrade redhat/freerdp-libs-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.11.7-1.el9_6.15.aa
  13. Upgrade

    Upgrade redhat/libwinpr to a version that resolves this vulnerability.

    Fixed in 2.11.7-1.el9_6.15.aa
  14. Upgrade

    Upgrade redhat/libwinpr-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.11.7-1.el9_6.15.aa
  15. Upgrade

    Upgrade redhat/freerdp-devel to a version that resolves this vulnerability.

    Fixed in 2.11.7-1.el9_6.15
  16. Upgrade

    Upgrade redhat/libwinpr-devel to a version that resolves this vulnerability.

    Fixed in 2.11.7-1.el9_6.15
  17. Upgrade

    Upgrade redhat/freerdp-devel to a version that resolves this vulnerability.

    Fixed in 2.11.7-1.el9_6.15.aa
  18. Upgrade

    Upgrade redhat/libwinpr-devel to a version that resolves this vulnerability.

    Fixed in 2.11.7-1.el9_6.15.aa

Event History

Nov 11, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·04:01 PM
Data Sourced
via Red Hat·04:01 PM
Severity

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