CVE-2025-8065: CWE-121 Stack-based buffer overflow in TP-Link Systems Inc. Tapo C200 V3
CVE-2025-8065 is a stack-based buffer overflow vulnerability in the ONVIF SOAP XML Parser of TP-Link Tapo C200 V3 and C520WS v2. 6 devices. The flaw occurs when the parser processes XML tags with namespace prefixes without validating the prefix length before copying it to a fixed-size stack buffer. This allows an unauthenticated attacker on the same local network to send a crafted SOAP request with an oversized namespace prefix, causing memory corruption on the stack. Exploitation can lead to remote code execution with elevated privileges, resulting in full device compromise. The vulnerability has a high severity score of 8. 7. No patch or official remediation information is currently provided by the vendor, and no known exploits are reported in the wild.
AI Analysis
Technical Summary
A stack-based buffer overflow (CWE-121) exists in the ONVIF SOAP XML Parser of TP-Link Tapo C200 V3 and C520WS v2.6 devices. The parser fails to validate the length of namespace prefixes in XML tags before copying them into a fixed-size stack buffer. An attacker on the same local network can exploit this by sending a crafted SOAP request with an oversized namespace prefix, causing memory corruption that may lead to remote code execution with elevated privileges. The vulnerability is unauthenticated and has a CVSS 4.0 score of 8.7 (high severity). No patch or vendor advisory is currently available to confirm remediation status.
Potential Impact
Successful exploitation allows an unauthenticated attacker on the same local network to execute arbitrary code with elevated privileges on affected devices, leading to full compromise of the device. This can result in loss of device integrity, confidentiality, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict local network access to trusted users only and monitor for unusual SOAP requests targeting the ONVIF service. Avoid exposing the device to untrusted networks.
CVE-2025-8065: CWE-121 Stack-based buffer overflow in TP-Link Systems Inc. Tapo C200 V3
Description
CVE-2025-8065 is a stack-based buffer overflow vulnerability in the ONVIF SOAP XML Parser of TP-Link Tapo C200 V3 and C520WS v2. 6 devices. The flaw occurs when the parser processes XML tags with namespace prefixes without validating the prefix length before copying it to a fixed-size stack buffer. This allows an unauthenticated attacker on the same local network to send a crafted SOAP request with an oversized namespace prefix, causing memory corruption on the stack. Exploitation can lead to remote code execution with elevated privileges, resulting in full device compromise. The vulnerability has a high severity score of 8. 7. No patch or official remediation information is currently provided by the vendor, and no known exploits are reported in the wild.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
A stack-based buffer overflow (CWE-121) exists in the ONVIF SOAP XML Parser of TP-Link Tapo C200 V3 and C520WS v2.6 devices. The parser fails to validate the length of namespace prefixes in XML tags before copying them into a fixed-size stack buffer. An attacker on the same local network can exploit this by sending a crafted SOAP request with an oversized namespace prefix, causing memory corruption that may lead to remote code execution with elevated privileges. The vulnerability is unauthenticated and has a CVSS 4.0 score of 8.7 (high severity). No patch or vendor advisory is currently available to confirm remediation status.
Potential Impact
Successful exploitation allows an unauthenticated attacker on the same local network to execute arbitrary code with elevated privileges on affected devices, leading to full compromise of the device. This can result in loss of device integrity, confidentiality, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict local network access to trusted users only and monitor for unusual SOAP requests targeting the ONVIF service. Avoid exposing the device to untrusted networks.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- TPLink
- Date Reserved
- 2025-07-22T21:23:25.432Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6945fa2fc376abdb7e67a379
Added to database: 12/20/2025, 1:21:51 AM
Last enriched: 4/10/2026, 9:11:15 AM
Last updated: 5/10/2026, 12:58:47 AM
Views: 190
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