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CVE-2026-65832— Deskflow - Unauthenticated server-controlled out-of-bounds read in ServerProxy::setOptions / translateKey modifier-table indexing

Quick assessment

Affected
deskflow deskflow
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Deskflow是Deskflow团队的一款开源键盘鼠标共享软件。 Deskflow 1.26.0.299之前版本存在安全漏洞，该漏洞源于ServerProxy::setOptions()在处理kMsgDSetOptions值时未正确验证选项，导致m_modifierTranslationTable被污染并引发越界读取，可能泄露四个字节数据或导致客户端崩溃。

CVSS 8.2 · High EPSS 0.31% · P23

Affected Version Matrix 1

VendorProduct Version RangeStatus
deskflow deskflow < 1.26.0.299 affected
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I. Basic Information for CVE-2026-65832

Vulnerability Information
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Vulnerability Title
Deskflow - Unauthenticated server-controlled out-of-bounds read in ServerProxy::setOptions / translateKey modifier-table indexing
Source: CVE Program / CVE List V5
Vulnerability Description
Deskflow is a keyboard and mouse sharing app. Prior to continuous build 1.26.0.299, a remote unauthenticated Deskflow server can send kMsgDSetOptions (DSOP) values to ServerProxy::setOptions() in src/lib/client/ServerProxy.cpp so that the value following a modifier option poisons m_modifierTranslationTable, after which ServerProxy::translateKey() or ServerProxy::translateModifierMask() indexes the seven-row s_translationTable or s_masks arrays out of bounds, disclosing four bytes at an attacker-selected relative offset or crashing the connected client; an odd option count also causes an out-of-bounds OptionsList read. This issue is fixed in continuous build 1.26.0.299.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Deskflow 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Deskflow是Deskflow团队的一款开源键盘鼠标共享软件。 Deskflow 1.26.0.299之前版本存在安全漏洞，该漏洞源于ServerProxy::setOptions()在处理kMsgDSetOptions值时未正确验证选项，导致m_modifierTranslationTable被污染并引发越界读取，可能泄露四个字节数据或导致客户端崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
deskflow deskflow < 1.26.0.299 -

II. Public POCs for CVE-2026-65832

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 10157 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-65832

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Patches & Fixes for CVE-2026-65832 (2)

Vendor Advisories for CVE-2026-65832 (1)

Same Patch Batch · deskflow · 2026-08-17 · 3 CVEs total

CVE-2026-63409 8.2 HIGH Deskflow: Odd-length DSOP options vector causes out-of-bounds read in Deskflow client
CVE-2026-65976 6.5 MEDIUM Deskflow: Clipboard receiver can accumulate data beyond Deskflow's configured clipboard si

IV. Related Vulnerabilities

Same product: deskflow
Same vendor: deskflow
Same weakness: CWE-125

V. Comments for CVE-2026-65832

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