RHSA-2026:20546MediumCVSS 7.3

Red Hat Security Advisory: freerdp security update

Published
May 26, 2026
Last Modified
August 18, 2026

🔗 CVE IDs covered (8)

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

📋 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 products49

  • Red Hat Enterprise Linux Server (v. 7 ELS)
  • Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • freerdp-0:2.1.1-5.el7_9.9.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • freerdp-0:2.1.1-5.el7_9.9.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • freerdp-0:2.1.1-5.el7_9.9.s390x as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • freerdp-0:2.1.1-5.el7_9.9.src as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • freerdp-0:2.1.1-5.el7_9.9.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • freerdp-debuginfo-0:2.1.1-5.el7_9.9.i686 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • freerdp-debuginfo-0:2.1.1-5.el7_9.9.i686 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • freerdp-debuginfo-0:2.1.1-5.el7_9.9.ppc as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • freerdp-debuginfo-0:2.1.1-5.el7_9.9.ppc as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • freerdp-debuginfo-0:2.1.1-5.el7_9.9.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • freerdp-debuginfo-0:2.1.1-5.el7_9.9.ppc64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • freerdp-debuginfo-0:2.1.1-5.el7_9.9.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • freerdp-debuginfo-0:2.1.1-5.el7_9.9.ppc64le as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • freerdp-debuginfo-0:2.1.1-5.el7_9.9.s390 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • freerdp-debuginfo-0:2.1.1-5.el7_9.9.s390 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • freerdp-debuginfo-0:2.1.1-5.el7_9.9.s390x as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • freerdp-debuginfo-0:2.1.1-5.el7_9.9.s390x as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • freerdp-debuginfo-0:2.1.1-5.el7_9.9.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • freerdp-debuginfo-0:2.1.1-5.el7_9.9.x86_64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • freerdp-devel-0:2.1.1-5.el7_9.9.i686 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • freerdp-devel-0:2.1.1-5.el7_9.9.ppc as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • freerdp-devel-0:2.1.1-5.el7_9.9.ppc64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • freerdp-devel-0:2.1.1-5.el7_9.9.ppc64le as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • freerdp-devel-0:2.1.1-5.el7_9.9.s390 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • freerdp-devel-0:2.1.1-5.el7_9.9.s390x as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • freerdp-devel-0:2.1.1-5.el7_9.9.x86_64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • freerdp-libs-0:2.1.1-5.el7_9.9.i686 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • freerdp-libs-0:2.1.1-5.el7_9.9.ppc as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • +19 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)