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TI-2026-68599 Aliases CVE-2026-104944GHSA-hqfv-9fhw-44wc

Out-of-bounds function-pointer dispatch in TP-Link Tapo C500 crashes TDP daemon

Priority LOW 31CWE-823Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

TP-Link Tapo C500 v2.0 contains an out-of-bounds function-pointer dispatch in its TDP (TP-Link Device Protocol) daemon, a flaw tracked as CWE-823. A single unauthenticated UDP datagram sent over the network can cause an invalid indirect call that crashes the main service. An unauthenticated remote attacker can repeatedly crash the TDP daemon, disrupting normal device operation, and no authentication, session or pairing is required.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

TP-Link Tapo C500 v2.0 contains an out-of-bounds function-pointer dispatch in its TDP (TP-Link Device Protocol) daemon. A single unauthenticated UDP datagram can cause an invalid indirect call, crashing the main service and resulting in a denial-of-service condition. Successful exploitation may allow an unauthenticated attacker with network access to the affected UDP service to repeatedly crash the TDP daemon, disrupting normal device operation and availability. No authentication, session establishment, or pairing is required to trigger the condition.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00297 22nd percentileScored 2026-11-07
Fix Fixed Tapo C500 v2.0 (TP-Link Systems Inc.): 1.3.5 Build 260810

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
TP-LinkTapo C500 v2.0before 1.3.5 Build 2608101.3.5 Build 260810Patch availableCNA
  • Tapo C500 v2.0 VendorTP-Link Affected before 1.3.5 Build 260810 Fixed in 1.3.5 Build 260810 Patch available CNA

Remediation

Update Tapo C500 v2.0 to version 1.3.5 Build 260810 or later, which fixes this flaw. CVSS 4.0 base score 7.1 (HIGH) is listed for this record.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA Tapo C500 v2.0 (TP-Link Systems Inc.) Fixed in 1.3.5 Build 260810

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    TP-Link Systems Tapo C500 v2.0 — tp-link.com/us/support/faq/5327

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-68600 Out-of-bounds stack write in TP-Link Tapo C500 ONVIF PTZ handlersPriority LOW 29
    Show all 2 records → Advisory →

Timeline

  1. 2026-10-06 Threatist record created from CVE-2026-104944
  2. 2026-10-07 Alias added: GHSA-hqfv-9fhw-44wc
  3. 2026-10-07 CISA SSVC decision points changed
  4. 2026-10-07 Priority changed: MEDIUM → LOW

References

Patch 2

Advisory 1

  • TI-2023-16571 TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain… KEVCVSS 3.1HIGH 8.8
  • TI-2023-01313 Command injection in TP-Link Archer AX21 KEVCVSS 3.1HIGH 8.8
  • TI-2020-14907 TP-Link TL-WA855RE V5 20200415-rel37464 devices allow an unauthenticated attacker (on the… KEVCVSS 3.1HIGH 8.8
  • TI-2025-08589 Authenticated RCE via Parental Control command injection KEVCVSS 4.0HIGH 8.6
  • TI-2015-02672 Directory traversal vulnerability in TP-LINK Archer C5 (1.2) with firmware before 150317… KEVCVSS 3.1HIGH 7.5
  • TI-2023-27456 Authentication bypass by spoofing in TP-Link TL-WR841N KEVCVSS 3.1MEDIUM 6.5
See all 636 →

Sources

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