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TI-2026-76548 Aliases CVE-2026-105810GHSA-xj9v-v8cr-7969

Stack overflow in TP-Link Tapo C320WS lets attackers run commands

Priority LOW 39CWE-121Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

TP-Link Tapo C320WS v2 is affected before 1.6.6 Build 260917 Rel.81089n. A stack-based buffer overflow (CWE-121) in the local onboarding Wi-Fi configuration path lets an oversized encrypted password field overwrite stack state. An authenticated attacker on the adjacent network can execute commands with root privileges, take control of the camera, modify its behavior, access sensitive local configuration, and disrupt its availability.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Tapo C320WS V2.0 contains an authenticated stack-based buffer overflow in the local onboarding Wi-Fi configuration path. An authenticated attacker on the adjacent network can submit a crafted request containing an oversized encrypted password field, overwrite stack state, and execute commands with root privileges. Successful exploitation may allow an authenticated adjacent-network attacker to take control of the affected camera, modify camera behavior, access sensitive local configuration, and disrupt device availability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0046 40th percentileScored 2026-11-07
Fix Fixed Tapo C320WS v2 (TP-Link Systems Inc.): 1.6.6 Build 260917 Rel.81089n

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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 C320WS v2before 1.6.6 Build 260917 Rel.81089n1.6.6 Build 260917 Rel.81089nPatch availableCNA
  • Tapo C320WS v2 VendorTP-Link Affected before 1.6.6 Build 260917 Rel.81089n Fixed in 1.6.6 Build 260917 Rel.81089n Patch available CNA

Remediation

Upgrade Tapo C320WS v2 to 1.6.6 Build 260917 Rel.81089n, the fixed version.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Tapo C320WS v2 (TP-Link Systems Inc.) Fixed in 1.6.6 Build 260917 Rel.81089n

Timeline

  1. 2026-10-20 Threatist record created from CVE-2026-105810
  2. 2026-10-20 Alias added: GHSA-xj9v-v8cr-7969
  3. 2026-10-20 CISA SSVC decision points changed
  4. 2026-10-20 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