Authentication bypass in TP-Link Tapo C325WB JSON API
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-287.
Summary
TP-Link Tapo C325WB V2 from 0 before V2_1.3.3 Build 260914 is affected. An improper authentication flaw (CWE-287) in the HTTPS JSON API dispatcher on TCP port 443 lets requests bypass session verification. An unauthenticated attacker on the adjacent network can invoke privileged actions, which may allow access to live video and audio, changes to device settings, and disclosure of sensitive device information or secrets.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
TP-Link Tapo C325WB V2 contains an unauthenticated authorization bypass vulnerability in the HTTPS JSON API dispatcher on TCP port 443. An attacker on the adjacent network can append an onboarding-scoped object to a JSON request to bypass session verification and invoke privileged actions without authentication. Successful exploitation may allow an unauthenticated adjacent-network attacker to access live video and audio, modify device settings, and obtain sensitive device information or secrets.
Why it matters now
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
Remediation
Upgrade Tapo C325WB v2 to V2_1.3.3 Build 260914, the fixed version listed by the vendor.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA Tapo C325WB v2 (TP-Link Systems Inc.) Fixed in V2_1.3.3 Build 260914
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
TP-Link Systems Tapo C325WB v2 — tp-link.com/us/support/faq/5333
3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2026-69805 Predictable media stream pre-shared key in TP-Link Tapo C325WBPriority LOW 39
- TI-2026-69804 Unauthenticated RTSP tunnel crash in TP-Link Tapo C325WB camerasPriority LOW 31
Timeline
- 2026-10-09 Threatist record created from CVE-2026-105672
- 2026-10-10 Priority changed: MEDIUM → LOW
- 2026-10-16 CISA SSVC decision points changed
- 2026-10-25 Priority changed: LOW → MEDIUM
References
More TP-Link vulnerabilities
- 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
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences