Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。

  - 在认证前的确认活动状态期间，FreeRDP 影子服务器3.0.03.32.0会分派输入 PDU，从而允许未经身份验证的攻击者注入键盘输入。攻击者可协商仅使用 TLS 的 RDP 并在无确认活动的情况下发送输入 PDU，以便通过 XTEST 将合成按键注入主机用户的 X11 会话。（CVE-2026-110838）

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

Linux/Unix 主機上安裝了一個或多個受到弱點影響的套件，且廠商未提供可用的修補程式。

  - 之前3.32.0的 3.0.0 FreeRDP 影子伺服器會在驗證前的確認作用中狀態期間分派輸入 PDU，允許未經驗證的攻擊者插入鍵盤輸入。攻擊者可以協商僅限 TLS 的 RDP，並在沒有確認作用中的情況下傳送輸入 PDU，以透過 XTEST 將合成擊鍵插入主機使用者的工作 X11 階段。（CVE-2026-110838）

請注意，Nessus 的判定取決於廠商所報告的套件是否存在。

Linux/Unix ホストには、ベンダーが提供するパッチが利用できない脆弱性の影響を受ける複数のパッケージがインストールされています。

  - 3.32.0 より前の 3.0.0 からの FreeRDP シャドウサーバーが、認証前の Confirm Active 状態の間に入力 PDU をディスパッチし、認証されていない攻撃者がキーボード入力を注入することを可能にします。攻撃者が、TLS専用RDPネゴシエートし、アクティブの確認なしで入力 PDU を送信し、XTEST を介してホストユーザーの X11 セッションに合成キーストロークを注入する可能性があります。(CVE-2026-110838)

Nessus は、ベンダーから報告されたパッケージの存在に依存していることに注意してください。

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:1194 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2026-111382:
    FreeRDP before 3.32.0 contains a client-side heap out-of-bounds write vulnerability in     general_LumaToYUV444 and general_ChromaV2ToYUV444 that allows malicious RDP servers to corrupt client     memory. Attackers can send RDPGFX AVC444 or AVC444v2 frames with odd-height region rects ending at surface     height to write past U/V planes, enabling heap corruption and potential code execution.

    CVE-2026-111381:
    FreeRDP before 3.32.0 contains a heap buffer overflow vulnerability in persistent_cache_read_entry_v2 that     allows local attackers to corrupt heap memory via integer wraparound in bitmap size calculation. Attackers     can craft a persistent cache v2 file with oversized width and height values that causes mismatched entry     size accounting and fixed 16 KiB reads, leading to crashes or code execution when loaded.

    CVE-2026-111378:
    FreeRDP from 3.0.0 before 3.32.0 contains an uncontrolled resource consumption vulnerability in     parse_nla_mode_pdu that allows unauthenticated attackers to exhaust server memory. Attackers can complete     TLS and stream bytes not beginning with the DER SEQUENCE tag 0x30, causing unbounded receive buffer growth     before NLA authentication.

    CVE-2026-111377:
    FreeRDP from 2.0.0 before 3.32.0 contains an unbounded reassembly vulnerability in WTSProcessChannelData     that fails to enforce cumulative fragment limits. Authenticated clients can start a static virtual channel     message, withhold the LAST flag, and send endless fragments to exhaust server memory.

    CVE-2026-110838:
    FreeRDP shadow server from 3.0.0 before 3.32.0 dispatches input PDUs during the Confirm Active state     before authentication, allowing unauthenticated attackers to inject keyboard input. Attackers can     negotiate TLS-only RDP and send an input PDU without Confirm Active to inject synthetic keystrokes into     the host user's X11 session via XTEST.

    CVE-2026-109242:
    FreeRDP before 3.0.0 and 3.6.0 before 3.32.0 renders uninitialized heap memory from un-decoded progressive     tiles because the tile->current buffer is allocated without zeroing. A malicious RDP server can send a     crafted WBT_TILE_FIRST then WBT_TILE_UPGRADE sequence to paint heap bytes onscreen or abort the client     process.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - FreeRDP shadow server from 3.0.0 before 3.32.0 dispatches input PDUs during the Confirm Active state     before authentication, allowing unauthenticated attackers to inject keyboard input. Attackers can     negotiate TLS-only RDP and send an input PDU without Confirm Active to inject synthetic keystrokes into     the host user's X11 session via XTEST. (CVE-2026-110838)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	名前	製品	ファミリー	公開日	更新日	深刻度
371842	Amazon Linux 2023：freerdp、freerdp-devel、freerdp-libs (ALAS2023-2026-3307)	Nessus	Amazon Linux Local Security Checks	2026/10/25	2026/10/25	high
366140	Linux Distros 未修补的漏洞：CVE-2026-110838	Nessus	Misc.	2026/10/15	2026/10/26	high
371842	Amazon Linux 2023：freerdp、freerdp-devel、freerdp-libs (ALAS2023-2026-3307)	Nessus	Amazon Linux Local Security Checks	2026/10/25	2026/10/25	high
366140	Linux Distros 未修補弱點：CVE-2026-110838	Nessus	Misc.	2026/10/15	2026/10/26	high
371842	Amazon Linux 2023 : freerdp、freerdp-devel、freerdp-libs (ALAS2023-2026-3307)	Nessus	Amazon Linux Local Security Checks	2026/10/25	2026/10/25	high
366140	Linux Distros のパッチ未適用の脆弱性: CVE-2026-110838	Nessus	Misc.	2026/10/15	2026/10/26	high
371842	Amazon Linux 2023 : freerdp, freerdp-devel, freerdp-libs (ALAS2023-2026-3307)	Nessus	Amazon Linux Local Security Checks	2026/10/25	2026/10/25	high
372241	TencentOS Server 4: freerdp (TSSA-2026:1194)	Nessus	Tencent Local Security Checks	2026/10/27	2026/10/27	high
366140	Linux Distros Unpatched Vulnerability : CVE-2026-110838	Nessus	Misc.	2026/10/15	2026/10/26	high

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