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TI-2026-46991 Aliases CVE-2026-65976

Deskflow: Clipboard receiver can accumulate data beyond Deskflow's configured clipboard size limit

Priority LOW 29CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-400.

Summary

Deskflow is a keyboard and mouse sharing app. From 1.17.0 until continuous build 1.26.0.300, a connected peer can send repeated DCLP DataChunk messages to ClipboardChunk::assemble() in src/lib/deskflow/ClipboardChunk.cpp, causing the server path in src/lib/server/ClientProxy1_6.cpp or client path in src/lib/client/ServerProxy.cpp to append data beyond the DataStart declared size and configured clipboard limit before DataEnd validation, exhausting receiver memory. This issue is fixed in continuous build 1.26.0.300.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00452 39th percentileScored 2026-11-07
Fix Fixed deskflow (deskflow): 1.26.0.300

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
deskflowdeskflow1.17.0 to before 1.26.0.3001.26.0.300Patch availableCNA
  • deskflow Vendordeskflow Affected 1.17.0 to before 1.26.0.300 Fixed in 1.26.0.300 Patch available CNA

Remediation

  • Fix · CNA deskflow (deskflow) Fixed in 1.26.0.300

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-65976

References

Other 3

  • TI-2026-46910 Out-of-bounds read in deskflow CVSS 3.1HIGH 8.2
  • TI-2026-45196 Deskflow: Odd-length DSOP options vector causes out-of-bounds read in Deskflow client CVSS 3.1HIGH 8.2
  • TI-2026-30065 Deskflow: Local privilege escalation via unauthenticated IPC CVSS 3.1HIGH 7.8
  • TI-2026-30064 Deskflow: clipboard deserialization global-buffer-overflow CVSS 4.0HIGH 7.4
  • TI-2026-32267 Deskflow: TLS multiplexer DoS on failed `SSL_accept` CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences