Medium [CVE-2026-31884] FreeRDP has a division-by-zero in ADPCM decoders when `nBlockAlign` is 0
This medium-severity Red Hat Linux advisory covers CVE-2026-31884 affecting Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 7.
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Summary
FreeRDP has a division-by-zero in ADPCM decoders when `nBlockAlign` is 0. Red Hat rates this moderate (CVSS 6.5).
Weakness: CWE-369. Affected package(s): freerdp.
Resolved in Red Hat advisory RHSA-2026:19142 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 1.
- freerdp-2:2.2.0-12.el8_8.8
- freerdp-2:2.11.7-7.el9_8.3
- freerdp-0:2.1.1-5.el7_9.9
- freerdp-2:2.4.1-6.el9_2.9
- freerdp-2:2.11.2-1.el9_4.8
- freerdp-2:2.11.7-1.el9_7.7
- freerdp-2:3.10.3-5.el10_1.8
- freerdp-2:2.11.7-1.el9_6.10
- freerdp-2:2.4.1-3.el9_0.7
- freerdp-2:2.2.0-7.el8_6.8
- freerdp-2:2.2.0-14.el8_4
- freerdp-2:3.10.3-3.el10_0.7
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:19142
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:19142 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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