CVE-2026-22852

2026-01-14

Severity Assessment

LOW

CVSS v3.x Score

Clinical Analysis (Description)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a malicious RDP server can trigger a heap-buffer-overflow write in the FreeRDP client when processing Audio Input (AUDIN) format lists. audin_process_formats reuses callback->formats_count across multiple MSG_SNDIN_FORMATS PDUs and writes past the newly allocated formats array, causing memory corruption and a crash. This vulnerability is fixed in 3.20.1.

Vector Sequencing

Attack Parameters

Impact Consequences

Technical Impact

Weakness Classification

CWE-CWE-787

View CWE Details ↗

Timeline

Time Line

PUBLICATION

14 Jan 2026

Impact Statistics

Key Metrics

CVSS Score

LOW

Remediation Protocol

Immediate Action Plan

1. Inventory

Identify all affected systems in your infrastructure.

2. Assessment

Assess exposure and criticality for your organization.

3. Mitigation

Apply patches or available workarounds.

4. Verification

Test and confirm effectiveness of applied measures.

Sources & Bibliography

NIST NVD MITRE CVE External Reference ↗ External Reference ↗