Improper Certificate Validation in TP-Link Tapo H100 and P100 Allows Man-in-the-Middle Attack
Priority LOW 34CWE-295Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-295.
Summary
An Improper Certificate Validation vulnerability in TP-Link Tapo H100 v1 and Tapo P100 v1 allows an on-path attacker on the same network segment to intercept and modify encrypted device-cloud communications. This may compromise the confidentiality and integrity of device-to-cloud communication, enabling manipulation of device data or operations.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.002 9th percentileScored 2026-11-07
Fix Fixed Tapo H100 v1 (TP-Link Systems Inc.): 1.6.1Tapo P100 v1 (TP-Link Systems Inc.): 1.2.6
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| TP-Link | Tapo H100 v1 | before 1.6.1 | 1.6.1 | Patch available | CNA |
| TP-Link | Tapo P100 v1 | before 1.2.6 | 1.2.6 | Patch available | CNA |
- Tapo H100 v1 VendorTP-Link Affected before 1.6.1 Fixed in 1.6.1 Patch available CNA
- Tapo P100 v1 VendorTP-Link Affected before 1.2.6 Fixed in 1.2.6 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:tp-link:tapo_h100_firmware:*:*:*:*:*:*:*:* | before 1.6.1 | Vulnerable | TP-Link |
| cpe:2.3:h:tp-link:tapo_h100:1.0:*:*:*:*:*:*:* | 1.0 | Running on | TP-Link |
| cpe:2.3:o:tp-link:tapo_p100_firmware:*:*:*:*:*:*:*:* | before 1.2.6 | Vulnerable | TP-Link |
| cpe:2.3:h:tp-link:tapo_p100:1.0:*:*:*:*:*:*:* | 1.0 | Running on | TP-Link |
- cpe:2.3:o:tp-link:tapo_h100_firmware:*:*:*:*:*:*:*:* Versions before 1.6.1 Vulnerable ·TP-Link
- cpe:2.3:h:tp-link:tapo_h100:1.0:*:*:*:*:*:*:* Versions 1.0 Running on ·TP-Link
- cpe:2.3:o:tp-link:tapo_p100_firmware:*:*:*:*:*:*:*:* Versions before 1.2.6 Vulnerable ·TP-Link
- cpe:2.3:h:tp-link:tapo_p100:1.0:*:*:*:*:*:*:* Versions 1.0 Running on ·TP-Link
Remediation
- Fix · CNA Tapo H100 v1 (TP-Link Systems Inc.) Fixed in 1.6.1
- Fix · CNA Tapo P100 v1 (TP-Link Systems Inc.) Fixed in 1.2.6
Timeline
- 2026-10-02 Threatist record created from CVE-2025-15557
- 2026-10-03 Alias added: GHSA-2x8h-ggxv-ww4j
References
More TP-Link Tapo H100 Firmware vulnerabilities
- TI-2024-09747 Information Disclosure Vulnerability in TP-Link IoT Smart Hub CVSS 4.0MEDIUM 4.4
Sources
- CVE-2025-15557 · CVE Program
- CVE-2025-15557 · NVD
- FIRST EPSS
- GHSA-2x8h-ggxv-ww4j · GitHub Advisory Database · CC BY 4.0
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