CVE-2026-34122
Stack-based Buffer Overflow Leading to Denial of Service in TP-Link Tapo C520WS
- State
- Published
- Severity
- 7.1 High
- Published
- Apr 2, 2026
- Updated
- Apr 2, 2026
- Reserved
- Mar 25, 2026
Description
A stack-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 within a configuration handling component due to insufficient input validation. An attacker can exploit this vulnerability by supplying an excessively long value for a vulnerable configuration parameter, resulting in a stack overflow.
Successful exploitation results in Denial-of-Service (DoS) condition, leading to a service crash or device reboot, impacting availability.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | TPLink |
Weaknesses
- CWE-121 Stack-based buffer overflow
Affected Products
| Product | Versions |
|---|---|
Tapo C520WS v2.6TP-Link Systems Inc. |
|
References
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