RHSA-2026:16866MediumCVSS 7.3

Red Hat Security Advisory: freerdp security update

Published
May 13, 2026
Last Modified
August 18, 2026

🔗 CVE IDs covered (8)

CVE-2026-25952 →CVE-2026-26986 →CVE-2026-27951 →CVE-2026-29775 →CVE-2026-31883 →CVE-2026-31884 →CVE-2026-31885 →CVE-2026-33985 →

📋 Description

CVE-2026-25952 — freerdp: FreeRDP: Denial of service due to use-after-free vulnerability CVE-2026-26986 — freerdp: FreeRDP: Denial of Service via double free vulnerability during disconnect CVE-2026-27951 — freerdp: FreeRDP: Denial of Service via endless blocking loop in Stream_EnsureCapacity CVE-2026-29775 — freerdp: FreeRDP has a heap-buffer-overflow in bitmap_cache_put via OOB cacheId CVE-2026-31883 — freerdp: FreeRDP: Denial of Service via crafted audio data in RDP CVE-2026-31884 — freerdp: FreeRDP has a division-by-zero in ADPCM decoders when nBlockAlign is 0 CVE-2026-31885 — freerdp: FreeRDP has an out-of-bounds read in ADPCM decoders due to missing predictor/step_index bounds checks CVE-2026-33985 — FreeRDP: FreeRDP: Information disclosure via heap memory out of bounds read

🎯 Affected products67

  • Red Hat CodeReady Linux Builder EUS (v.9.4)
  • Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • freerdp-2:2.11.2-1.el9_4.8.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • freerdp-2:2.11.2-1.el9_4.8.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • freerdp-2:2.11.2-1.el9_4.8.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • freerdp-2:2.11.2-1.el9_4.8.src as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • freerdp-2:2.11.2-1.el9_4.8.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • freerdp-debuginfo-2:2.11.2-1.el9_4.8.aarch64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • freerdp-debuginfo-2:2.11.2-1.el9_4.8.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • freerdp-debuginfo-2:2.11.2-1.el9_4.8.i686 as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • freerdp-debuginfo-2:2.11.2-1.el9_4.8.i686 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • freerdp-debuginfo-2:2.11.2-1.el9_4.8.ppc64le as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • freerdp-debuginfo-2:2.11.2-1.el9_4.8.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • freerdp-debuginfo-2:2.11.2-1.el9_4.8.s390x as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • freerdp-debuginfo-2:2.11.2-1.el9_4.8.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • freerdp-debuginfo-2:2.11.2-1.el9_4.8.x86_64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • freerdp-debuginfo-2:2.11.2-1.el9_4.8.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • freerdp-debugsource-2:2.11.2-1.el9_4.8.aarch64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • freerdp-debugsource-2:2.11.2-1.el9_4.8.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • freerdp-debugsource-2:2.11.2-1.el9_4.8.i686 as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • freerdp-debugsource-2:2.11.2-1.el9_4.8.i686 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • freerdp-debugsource-2:2.11.2-1.el9_4.8.ppc64le as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • freerdp-debugsource-2:2.11.2-1.el9_4.8.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • freerdp-debugsource-2:2.11.2-1.el9_4.8.s390x as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • freerdp-debugsource-2:2.11.2-1.el9_4.8.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • freerdp-debugsource-2:2.11.2-1.el9_4.8.x86_64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • freerdp-debugsource-2:2.11.2-1.el9_4.8.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • freerdp-devel-2:2.11.2-1.el9_4.8.aarch64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • freerdp-devel-2:2.11.2-1.el9_4.8.i686 as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • freerdp-devel-2:2.11.2-1.el9_4.8.ppc64le as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • +37 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

🔗 References (11)