CVE-2026-121387

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    CVE-2026-121387

    Published: 3 Nov 2026Last Modified: 5 Nov 2026

    Summary: FreeRDP 2.0.0 before 3.32.2 Out-of-Bounds Read via GSM610/WAV49 Decoder

    Details: FreeRDP 2.0.0 before 3.32.2 contains an out-of-bounds read vulnerability in freerdp_dsp_decode_gsm610 that allows malicious RDP servers to read past audio buffers by sending truncated GSM610 frames. Attackers can negotiate GSM610 on rdpsnd and send a WAVE2 message shorter than a 33- or 32-byte WAV49 frame to crash the client.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/121xxx/CVE-2026-121387.json, https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-wg7g-gx9g-r96c, https://nvd.nist.gov/vuln/detail/CVE-2026-121387, https://www.vulncheck.com/advisories/freerdp-2.0.0-before-3.32.2-out-of-bounds-read-via-gsm610-wav49-decoder

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 5ab2bed8749747b8e4b2ed431fd102bc726be684
    Fixed -97eff6ddfbbfaa8e42a126d362686bd001ff8bdc

    Affected versions

    3.5.1
    3.5.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-121387 | CVE-DB