CVE-2026-75619: CWE-122 Heap-based buffer overflow in TP-Link Systems Inc. Tapo C100 v5
A heap-based buffer overflow vulnerability exists in the RTSP service of TP-Link Systems Inc. Tapo C100/C101 version 5 devices. An authenticated attacker on the local network can send specially crafted RTSP frames with oversized length values, causing out-of-bounds heap writes. Exploitation can crash the RTSP service and reboot the device, resulting in a temporary denial-of-service condition.
AI Analysis
Technical Summary
CVE-2026-75619 describes a heap-based buffer overflow in the RTSP service of TP-Link Tapo C100/C101 v5 devices. The flaw arises when an authenticated local attacker sends RTSP frame data containing length values that exceed expected sizes, leading to out-of-bounds writes on the heap. This vulnerability can cause the RTSP service to crash and the device to reboot, causing temporary denial of service. The CVSS 4.0 base score is 6.9, reflecting medium severity with attack vector local, low attack complexity, no user interaction, and high impact on availability.
Potential Impact
Successful exploitation results in a crash of the RTSP service and triggers a device reboot, causing a temporary denial-of-service condition. There is no indication of code execution or data disclosure from the provided information.
Mitigation Recommendations
No patch or official fix information is provided in the vendor advisory or CVE data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the RTSP service to trusted users on the local network and monitor for unusual RTSP activity.
CVE-2026-75619: CWE-122 Heap-based buffer overflow in TP-Link Systems Inc. Tapo C100 v5
Description
A heap-based buffer overflow vulnerability exists in the RTSP service of TP-Link Systems Inc. Tapo C100/C101 version 5 devices. An authenticated attacker on the local network can send specially crafted RTSP frames with oversized length values, causing out-of-bounds heap writes. Exploitation can crash the RTSP service and reboot the device, resulting in a temporary denial-of-service condition.
CVSS v4.0
Score 6.9medium
Affected software
TP-Link Systems Inc.
Tapo C100 v5
TP-Link Systems Inc.
Tapo C101 v5
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-75619 describes a heap-based buffer overflow in the RTSP service of TP-Link Tapo C100/C101 v5 devices. The flaw arises when an authenticated local attacker sends RTSP frame data containing length values that exceed expected sizes, leading to out-of-bounds writes on the heap. This vulnerability can cause the RTSP service to crash and the device to reboot, causing temporary denial of service. The CVSS 4.0 base score is 6.9, reflecting medium severity with attack vector local, low attack complexity, no user interaction, and high impact on availability.
Potential Impact
Successful exploitation results in a crash of the RTSP service and triggers a device reboot, causing a temporary denial-of-service condition. There is no indication of code execution or data disclosure from the provided information.
Mitigation Recommendations
No patch or official fix information is provided in the vendor advisory or CVE data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the RTSP service to trusted users on the local network and monitor for unusual RTSP activity.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- TPLink
- Date Reserved
- 2026-08-18T00:01:50.160Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a85fb7bacd9273b497a321d
Added to database: 08/19/2026, 18:52:43 UTC
Last enriched: 09/11/2026, 07:49:46 UTC
Last updated: 10/03/2026, 14:46:10 UTC
Views: 80
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