High · CVSS 8.2CVE-2026-65832

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

Answer in brief

CVE-2026-65832 records a High severity (CVSS 8.2) vulnerability in Deskflow - Unauthenticated server-controlled out-of-bounds read in ServerProxy::setOptions / translateKey modifier-table indexing. The current sources do not mark it as known exploited. The current feed maps deskflow/deskflow (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 17, 2026Updated Sep 9, 2026Source checked Oct 2, 2026First seen by HOL Aug 17, 2026Material review Sep 9, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.2
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 8.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps deskflow/deskflow (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
deskflow/deskflowgeneric	< 1.26.0.299	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for deskflow/deskflow.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 9, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 17, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.