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    CVE-2026-111880

    FreeRDP versions from 2.0.0 before 3.32.0 contain a heap out-of-bounds write in the server hash-callback NTLM path that fails to validate the MIC offset. Unauthenticated attackers can send a crafted AUTHENTICATE_MESSAGE with a backward session-key offset and MIC offset to write 16 zero bytes beyond the allocation.

    Published:Oct 17, 2026
    Last Modified:Oct 19, 2026
    EPS:Oct 17, 2026
    EPSS Score:0.00321
    CVSS Score:7.4

    Affected Products

    Vendor
    Freerdp
    Product
    Freerdp

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-114046 (CVSS 7.1) — FreeRDP 3.0.0 before 3.32.0 contains a null-pointer dereference in the smartcard emulation backend that accept…
    CVE-2026-114044 (CVSS 6.9) — FreeRDP before 3.32.1 contains a heap out-of-bounds read vulnerability in the Android client that allows malic…
    CVE-2026-114042 (CVSS 7.1) — FreeRDP 3.32.0 contains a use-after-free vulnerability in the drdynvc channel that frees a pool-owned stream w…
    CVE-2026-114043 (CVSS 7.1) — FreeRDP before 3.32.1 contains a heap-based out-of-bounds read in WinPR's clipboard PNG-to-CF_DIB synthesis be…
    CVE-2026-114041 (CVSS 6.9) — FreeRDP before 3.32.1 on Windows contains a heap out-of-bounds read in client_cli_present_gateway_message that…
    CVE-2026-111881 (CVSS 7.2) — FreeRDP from 3.14.1 before 3.32.0 contains an integer underflow in the WinPR BMP writer, where a mismatched st…
    CVE-2026-111382 (CVSS 8.7) — FreeRDP before 3.32.0 contains a client-side heap out-of-bounds write vulnerability in general_LumaToYUV444 an…
    CVE-2026-111381 (CVSS 7) — FreeRDP before 3.32.0 contains a heap buffer overflow vulnerability in persistent_cache_read_entry_v2 that all…

    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